15211630992 has 20 divisors (see below), whose sum is σ = 39296713520. Its totient is φ = 5070543648.

The previous prime is 15211630979. The next prime is 15211631009. The reversal of 15211630992 is 29903611251.

It is a self number, because there is not a number n which added to its sum of digits gives 15211630992.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158454442 + ... + 158454537.

It is an arithmetic number, because the mean of its divisors is an integer number (1964835676).

Almost surely, 2^15211630992 is an apocalyptic number.

15211630992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15211630992 is an abundant number, since it is smaller than the sum of its proper divisors (24085082528).

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

15211630992 is a wasteful number, since it uses less digits than its factorization.

15211630992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316908990 (or 316908984 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The spelling of 15211630992 in words is "fifteen billion, two hundred eleven million, six hundred thirty thousand, nine hundred ninety-two".