13156725546 has 48 divisors (see below), whose sum is σ = 29015532000. Its totient is φ = 4307602464.

The previous prime is 13156725529. The next prime is 13156725551. The reversal of 13156725546 is 64552765131.

13156725546 is a `hidden beast` number, since 1 + 31 + 5 + 6 + 72 + 5 + 546 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 405265 + ... + 436523.

It is an arithmetic number, because the mean of its divisors is an integer number (604490250).

Almost surely, 2^13156725546 is an apocalyptic number.

13156725546 is an abundant number, since it is smaller than the sum of its proper divisors (15858806454).

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

13156725546 is a wasteful number, since it uses less digits than its factorization.

13156725546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31683 (or 31680 counting only the distinct ones).

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

The spelling of 13156725546 in words is "thirteen billion, one hundred fifty-six million, seven hundred twenty-five thousand, five hundred forty-six".