12206638976 has 48 divisors (see below), whose sum is σ = 27799432920. Its totient is φ = 5229999360.

The previous prime is 12206638949. The next prime is 12206638993. The reversal of 12206638976 is 67983660221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3305291 + ... + 3308981.

Almost surely, 2^12206638976 is an apocalyptic number.

12206638976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12206638976 is an abundant number, since it is smaller than the sum of its proper divisors (15592793944).

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

12206638976 is an frugal number, since it uses more digits than its factorization.

12206638976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7403 (or 3700 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 12206638976 in words is "twelve billion, two hundred six million, six hundred thirty-eight thousand, nine hundred seventy-six".