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66100053463 = 1710749972823
BaseRepresentation
bin111101100011110111…
…101100010111010111
320022121121220121222021
4331203313230113113
52040333103202323
650211013314011
74530010120063
oct754367542727
9208547817867
1066100053463
112603a836564
1210988935907
136305487b92
1432b0aa8aa3
151abd05105d
hexf63dec5d7

66100053463 has 16 divisors (see below), whose sum is σ = 70784928000. Its totient is φ = 61506043776.

The previous prime is 66100053443. The next prime is 66100053517. The reversal of 66100053463 is 36435000166.

It is a cyclic number.

It is not a de Polignac number, because 66100053463 - 29 = 66100052951 is a prime.

It is a super-2 number, since 2×661000534632 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66100053433) 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, 871270 + ... + 944092.

It is an arithmetic number, because the mean of its divisors is an integer number (4424058000).

Almost surely, 266100053463 is an apocalyptic number.

66100053463 is a deficient number, since it is larger than the sum of its proper divisors (4684874537).

66100053463 is a wasteful number, since it uses less digits than its factorization.

66100053463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73446.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 66100053463 in words is "sixty-six billion, one hundred million, fifty-three thousand, four hundred sixty-three".

Divisors: 1 17 107 499 1819 8483 53393 72823 907681 1237991 7792061 36338677 132465037 617757509 3888238439 66100053463