12160515645 has 48 divisors (see below), whose sum is σ = 21862546992. Its totient is φ = 6247756800.

The previous prime is 12160515643. The next prime is 12160515659. The reversal of 12160515645 is 54651506121.

12160515645 is a `hidden beast` number, since 1 + 2 + 1 + 6 + 0 + 5 + 1 + 5 + 645 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 5324037156 + 6836478489 = 72966^2 + 82683^2 .

It is not a de Polignac number, because 12160515645 - 2¹ = 12160515643 is a prime.

It is a super-3 number, since 3×12160515645³ (a number of 31 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12160515643) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132009 + ... + 204321.

It is an arithmetic number, because the mean of its divisors is an integer number (455469729).

Almost surely, 2^12160515645 is an apocalyptic number.

12160515645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12160515645 is a deficient number, since it is larger than the sum of its proper divisors (9702031347).

12160515645 is a wasteful number, since it uses less digits than its factorization.

12160515645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72462 (or 72459 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 12160515645 in words is "twelve billion, one hundred sixty million, five hundred fifteen thousand, six hundred forty-five".