56191622400 has 432 divisors, whose sum is σ = 206799819520. Its totient is φ = 14929920000.

The previous prime is 56191622363. The next prime is 56191622407. The reversal of 56191622400 is 422619165.

56191622400 is a `hidden beast` number, since 5 + 6 + 191 + 62 + 2 + 400 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56191622407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74822025 + ... + 74822775.

Almost surely, 2^56191622400 is an apocalyptic number.

56191622400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56191622400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103399909760).

56191622400 is an abundant number, since it is smaller than the sum of its proper divisors (150608197120).

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

56191622400 is a wasteful number, since it uses less digits than its factorization.

56191622400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 56191622400 in words is "fifty-six billion, one hundred ninety-one million, six hundred twenty-two thousand, four hundred".