56191911600 has 120 divisors (see below), whose sum is σ = 196365235392. Its totient is φ = 13622278400.

The previous prime is 56191911539. The next prime is 56191911613. The reversal of 56191911600 is 611919165.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2115282 + ... + 2141681.

Almost surely, 2^56191911600 is an apocalyptic number.

56191911600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56191911600 is an abundant number, since it is smaller than the sum of its proper divisors (140173323792).

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

56191911600 is a wasteful number, since it uses less digits than its factorization.

56191911600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256995 (or 4256984 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 39.

The spelling of 56191911600 in words is "fifty-six billion, one hundred ninety-one million, nine hundred eleven thousand, six hundred".