12055991600 has 60 divisors (see below), whose sum is σ = 28975072560. Its totient is φ = 4820640000.

The previous prime is 12055991599. The next prime is 12055991653. The reversal of 12055991600 is 619955021.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2188850 + ... + 2194350.

It is an arithmetic number, because the mean of its divisors is an integer number (482917876).

Almost surely, 2^12055991600 is an apocalyptic number.

12055991600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12055991600 is an abundant number, since it is smaller than the sum of its proper divisors (16919080960).

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

12055991600 is a wasteful number, since it uses less digits than its factorization.

12055991600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10998 (or 10987 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 38.

The spelling of 12055991600 in words is "twelve billion, fifty-five million, nine hundred ninety-one thousand, six hundred".