56791066500 has 288 divisors, whose sum is σ = 215529350400. Its totient is φ = 12297484800.

The previous prime is 56791066471. The next prime is 56791066523. The reversal of 56791066500 is 566019765.

56791066500 is a `hidden beast` number, since 5 + 6 + 79 + 10 + 66 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 551056 + ... + 645944.

It is an arithmetic number, because the mean of its divisors is an integer number (748365800).

Almost surely, 2^56791066500 is an apocalyptic number.

56791066500 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 56791066500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107764675200).

56791066500 is an abundant number, since it is smaller than the sum of its proper divisors (158738283900).

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

56791066500 is a wasteful number, since it uses less digits than its factorization.

56791066500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94940 (or 94925 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The spelling of 56791066500 in words is "fifty-six billion, seven hundred ninety-one million, sixty-six thousand, five hundred".