12291196256 has 48 divisors (see below), whose sum is σ = 24458241024. Its totient is φ = 6079929984.

The previous prime is 12291196249. The next prime is 12291196261. The reversal of 12291196256 is 65269119221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157885 + ... + 1168451.

It is an arithmetic number, because the mean of its divisors is an integer number (509546688).

Almost surely, 2^12291196256 is an apocalyptic number.

12291196256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12291196256 is a deficient number, since it is larger than the sum of its proper divisors (12167044768).

12291196256 is a wasteful number, since it uses less digits than its factorization.

12291196256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10963 (or 10955 counting only the distinct ones).

The product of its digits is 116640, while the sum is 44.

The spelling of 12291196256 in words is "twelve billion, two hundred ninety-one million, one hundred ninety-six thousand, two hundred fifty-six".