15452643556 has 24 divisors (see below), whose sum is σ = 30908767680. Its totient is φ = 6621815712.

The previous prime is 15452643553. The next prime is 15452643581. The reversal of 15452643556 is 65534625451.

It is not an unprimeable number, because it can be changed into a prime (15452643553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274815 + ... + 326233.

It is an arithmetic number, because the mean of its divisors is an integer number (1287865320).

Almost surely, 2^15452643556 is an apocalyptic number.

It is an amenable number.

15452643556 is an abundant number, since it is smaller than the sum of its proper divisors (15456124124).

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

15452643556 is a wasteful number, since it uses less digits than its factorization.

15452643556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62163 (or 62161 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 46.

The spelling of 15452643556 in words is "fifteen billion, four hundred fifty-two million, six hundred forty-three thousand, five hundred fifty-six".