12749446465164 has 60 divisors (see below), whose sum is σ = 33345682246800. Its totient is φ = 4247761221792.

The previous prime is 12749446465163. The next prime is 12749446465169. The reversal of 12749446465164 is 46156464494721.

12749446465164 is a `hidden beast` number, since 1 + 2 + 7 + 4 + 9 + 4 + 4 + 6 + 465 + 164 = 666.

It is not an unprimeable number, because it can be changed into a prime (12749446465163) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8839104 + ... + 10179815.

It is an arithmetic number, because the mean of its divisors is an integer number (555761370780).

Almost surely, 2^{12749446465164} is an apocalyptic number.

It is an amenable number.

12749446465164 is an abundant number, since it is smaller than the sum of its proper divisors (20596235781636).

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

12749446465164 is a wasteful number, since it uses less digits than its factorization.

12749446465164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19021004 (or 19020993 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 63.

The spelling of 12749446465164 in words is "twelve trillion, seven hundred forty-nine billion, four hundred forty-six million, four hundred sixty-five thousand, one hundred sixty-four".