15556500660 has 48 divisors (see below), whose sum is σ = 43578049536. Its totient is φ = 4146509952.

The previous prime is 15556500613. The next prime is 15556500721. The reversal of 15556500660 is 6600565551.

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, 76269 + ... + 192171.

It is an arithmetic number, because the mean of its divisors is an integer number (907876032).

Almost surely, 2^15556500660 is an apocalyptic number.

15556500660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15556500660 is an abundant number, since it is smaller than the sum of its proper divisors (28021548876).

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

15556500660 is a wasteful number, since it uses less digits than its factorization.

15556500660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118152 (or 118150 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 15556500660 in words is "fifteen billion, five hundred fifty-six million, five hundred thousand, six hundred sixty".