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61000665105556 = 221113032053518261
BaseRepresentation
bin11011101111010110100101…
…11110011000010010010100
321222222121101020022210202101
431313223102332120102110
530443413330231334211
6333423152500251444
715564103230123631
oct1567532276302224
9258877336283671
1061000665105556
1118489267193710
126a124073a0b84
1328064518896c7
14110c63b233188
1570bb798e75c1
hex377ad2f98494

61000665105556 has 48 divisors (see below), whose sum is σ = 116602183571328. Its totient is φ = 27692746300800.

The previous prime is 61000665105551. The next prime is 61000665105563. The reversal of 61000665105556 is 65550156600016.

It is a super-2 number, since 2×610006651055562 (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61000665105551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117443466 + ... + 117961726.

It is an arithmetic number, because the mean of its divisors is an integer number (2429212157736).

Almost surely, 261000665105556 is an apocalyptic number.

It is an amenable number.

61000665105556 is a deficient number, since it is larger than the sum of its proper divisors (55601518465772).

61000665105556 is a wasteful number, since it uses less digits than its factorization.

61000665105556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521632 (or 521630 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 61000665105556 in words is "sixty-one trillion, six hundred sixty-five million, one hundred five thousand, five hundred fifty-six".

Divisors: 1 2 4 11 22 44 1303 2053 2606 4106 5212 8212 14333 22583 28666 45166 57332 90332 518261 1036522 2073044 2675059 5350118 5700871 10700236 11401742 22803484 29425649 58851298 117702596 675294083 1063989833 1350588166 2127979666 2701176332 4255959332 7428234913 11703888163 14856469826 23407776326 29712939652 46815552652 1386378752399 2772757504798 5545515009596 15250166276389 30500332552778 61000665105556