56491610112 has 208 divisors, whose sum is σ = 191273610880. Its totient is φ = 16140238848.

The previous prime is 56491610081. The next prime is 56491610137. The reversal of 56491610112 is 21101619465.

56491610112 is a `hidden beast` number, since 5 + 649 + 1 + 6 + 1 + 0 + 1 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 737658 + ... + 810630.

Almost surely, 2^56491610112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56491610112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95636805440).

56491610112 is an abundant number, since it is smaller than the sum of its proper divisors (134782000768).

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

56491610112 is an equidigital number, since it uses as much as digits as its factorization.

56491610112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73013 (or 72985 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 56491610112 in words is "fifty-six billion, four hundred ninety-one million, six hundred ten thousand, one hundred twelve".