56840910671520 has 1920 divisors, whose sum is σ = 218867403718656. Its totient is φ = 13911815909376.

The previous prime is 56840910671443. The next prime is 56840910671549. The reversal of 56840910671520 is 2517601904865.

It is a happy number.

56840910671520 is a `hidden beast` number, since 5 + 6 + 8 + 4 + 0 + 9 + 106 + 7 + 1 + 520 = 666.

It is a super-2 number, since 2×56840910671520² (a number of 28 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 340364734477 + ... + 340364734643.

Almost surely, 2^{56840910671520} 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 56840910671520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109433701859328).

56840910671520 is an abundant number, since it is smaller than the sum of its proper divisors (162026493047136).

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

56840910671520 is a wasteful number, since it uses less digits than its factorization.

56840910671520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 56840910671520 in words is "fifty-six trillion, eight hundred forty billion, nine hundred ten million, six hundred seventy-one thousand, five hundred twenty".