12645540260320 has 96 divisors (see below), whose sum is σ = 32591815524576. Its totient is φ = 4598264064000.

The previous prime is 12645540260261. The next prime is 12645540260341. The reversal of 12645540260320 is 2306204554621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 107929770 + ... + 108046870.

It is an arithmetic number, because the mean of its divisors is an integer number (339498078381).

Almost surely, 2^{12645540260320} is an apocalyptic number.

12645540260320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12645540260320 is an abundant number, since it is smaller than the sum of its proper divisors (19946275264256).

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

12645540260320 is a wasteful number, since it uses less digits than its factorization.

12645540260320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178484 (or 178476 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 12645540260320 in words is "twelve trillion, six hundred forty-five billion, five hundred forty million, two hundred sixty thousand, three hundred twenty".