56897321670 has 240 divisors, whose sum is σ = 178373965968. Its totient is φ = 12975500160.

The previous prime is 56897321669. The next prime is 56897321707. The reversal of 56897321670 is 7612379865.

56897321670 is a `hidden beast` number, since 568 + 9 + 7 + 3 + 2 + 1 + 6 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 20756500 + ... + 20759240.

Almost surely, 2^56897321670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56897321670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89186982984).

56897321670 is an abundant number, since it is smaller than the sum of its proper divisors (121476644298).

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

56897321670 is a wasteful number, since it uses less digits than its factorization.

56897321670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297 (or 3281 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 56897321670 in words is "fifty-six billion, eight hundred ninety-seven million, three hundred twenty-one thousand, six hundred seventy".