11971615204 has 12 divisors (see below), whose sum is σ = 21010704624. Its totient is φ = 5968556744.

The previous prime is 11971615157. The next prime is 11971615213. The reversal of 11971615204 is 40251617911.

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, 4311154 + ... + 4313929.

It is an arithmetic number, because the mean of its divisors is an integer number (1750892052).

Almost surely, 2^11971615204 is an apocalyptic number.

It is an amenable number.

11971615204 is a deficient number, since it is larger than the sum of its proper divisors (9039089420).

11971615204 is a wasteful number, since it uses less digits than its factorization.

11971615204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8625434 (or 8625432 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The spelling of 11971615204 in words is "eleven billion, nine hundred seventy-one million, six hundred fifteen thousand, two hundred four".