15855116 has 12 divisors (see below), whose sum is σ = 27924288. Its totient is φ = 7876752.

The previous prime is 15855113. The next prime is 15855131. The reversal of 15855116 is 61155851.

It is not an unprimeable number, because it can be changed into a prime (15855113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11996 + ... + 13251.

It is an arithmetic number, because the mean of its divisors is an integer number (2327024).

Almost surely, 2^15855116 is an apocalyptic number.

It is an amenable number.

15855116 is a deficient number, since it is larger than the sum of its proper divisors (12069172).

15855116 is a wasteful number, since it uses less digits than its factorization.

15855116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25408 (or 25406 counting only the distinct ones).

The product of its digits is 6000, while the sum is 32.

The square root of 15855116 is about 3981.8483145394. The cubic root of 15855116 is about 251.2213092326.

The spelling of 15855116 in words is "fifteen million, eight hundred fifty-five thousand, one hundred sixteen".