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64366031152668 = 22374108071865261
BaseRepresentation
bin11101010001010011000100…
…11011000010011000011100
322102220022222101021100111110
432220221202123002120130
531414033112433341133
6344521202502222020
716362202153416330
oct1650514233023034
9272808871240443
1064366031152668
1119566531626323
127276699724910
1329bb8c95b829b
1411c74926697c0
157694951acc63
hex3a8a626c261c

64366031152668 has 48 divisors (see below), whose sum is σ = 171643259579904. Its totient is φ = 18390239989440.

The previous prime is 64366031152651. The next prime is 64366031152681. The reversal of 64366031152668 is 86625113066346.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33575158 + ... + 35440418.

It is an arithmetic number, because the mean of its divisors is an integer number (3575901241248).

Almost surely, 264366031152668 is an apocalyptic number.

It is an amenable number.

64366031152668 is an abundant number, since it is smaller than the sum of its proper divisors (107277228427236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64366031152668 is a wasteful number, since it uses less digits than its factorization.

64366031152668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276082 (or 2276080 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 57.

The spelling of 64366031152668 in words is "sixty-four trillion, three hundred sixty-six billion, thirty-one million, one hundred fifty-two thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 410807 821614 1232421 1643228 1865261 2464842 2875649 3730522 4929684 5595783 5751298 7461044 8626947 11191566 11502596 13056827 17253894 22383132 26113654 34507788 39170481 52227308 78340962 156681924 766262275627 1532524551254 2298786826881 3065049102508 4597573653762 5363835929389 9195147307524 10727671858778 16091507788167 21455343717556 32183015576334 64366031152668