15155551206 has 48 divisors (see below), whose sum is σ = 33982378560. Its totient is φ = 4875776640.

The previous prime is 15155551183. The next prime is 15155551211. The reversal of 15155551206 is 60215555151.

15155551206 is a `hidden beast` number, since 1 + 51 + 55 + 551 + 2 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2164371 + ... + 2171361.

It is an arithmetic number, because the mean of its divisors is an integer number (707966220).

Almost surely, 2^15155551206 is an apocalyptic number.

15155551206 is an abundant number, since it is smaller than the sum of its proper divisors (18826827354).

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

15155551206 is a wasteful number, since it uses less digits than its factorization.

15155551206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11181 (or 11178 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 36.

The spelling of 15155551206 in words is "fifteen billion, one hundred fifty-five million, five hundred fifty-one thousand, two hundred six".