12755634165 has 80 divisors (see below), whose sum is σ = 23459673600. Its totient is φ = 6627132288.

The previous prime is 12755634131. The next prime is 12755634169. The reversal of 12755634165 is 56143655721.

12755634165 is a `hidden beast` number, since 1 + 2 + 7 + 5 + 5 + 634 + 1 + 6 + 5 = 666.

It is not a de Polignac number, because 12755634165 - 2¹³ = 12755625973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12755634165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12755634169) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8863516 + ... + 8864954.

It is an arithmetic number, because the mean of its divisors is an integer number (293245920).

Almost surely, 2^12755634165 is an apocalyptic number.

12755634165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12755634165 is a deficient number, since it is larger than the sum of its proper divisors (10704039435).

12755634165 is a wasteful number, since it uses less digits than its factorization.

12755634165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008 (or 1999 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The spelling of 12755634165 in words is "twelve billion, seven hundred fifty-five million, six hundred thirty-four thousand, one hundred sixty-five".