15006550656 has 128 divisors (see below), whose sum is σ = 41853211200. Its totient is φ = 4757372928.

The previous prime is 15006550633. The next prime is 15006550717. The reversal of 15006550656 is 65605560051.

It is a tau number, because it is divible by the number of its divisors (128).

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, 736056 + ... + 756168.

Almost surely, 2^15006550656 is an apocalyptic number.

15006550656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15006550656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20926605600).

15006550656 is an abundant number, since it is smaller than the sum of its proper divisors (26846660544).

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

15006550656 is a wasteful number, since it uses less digits than its factorization.

15006550656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20226 (or 20214 counting only the distinct ones).

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

The spelling of 15006550656 in words is "fifteen billion, six million, five hundred fifty thousand, six hundred fifty-six".