15616225290 has 32 divisors (see below), whose sum is σ = 38350547136. Its totient is φ = 4067481600.

The previous prime is 15616225249. The next prime is 15616225309. The reversal of 15616225290 is 9252261651.

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, 6051511 + ... + 6054090.

It is an arithmetic number, because the mean of its divisors is an integer number (1198454598).

Almost surely, 2^15616225290 is an apocalyptic number.

15616225290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15616225290 is an abundant number, since it is smaller than the sum of its proper divisors (22734321846).

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

15616225290 is a wasteful number, since it uses less digits than its factorization.

15616225290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12105654.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 15616225290 in words is "fifteen billion, six hundred sixteen million, two hundred twenty-five thousand, two hundred ninety".