56533044355164 has 216 divisors, whose sum is σ = 158556273155280. Its totient is φ = 16967016428544.

The previous prime is 56533044355153. The next prime is 56533044355187. The reversal of 56533044355164 is 46155344033565.

56533044355164 is a `hidden beast` number, since 5 + 6 + 5 + 3 + 30 + 443 + 5 + 5 + 164 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 56533044355164.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 191614192 + ... + 191909000.

Almost surely, 2^{56533044355164} 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 56533044355164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79278136577640).

56533044355164 is an abundant number, since it is smaller than the sum of its proper divisors (102023228800116).

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

56533044355164 is a wasteful number, since it uses less digits than its factorization.

56533044355164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295621 (or 295603 counting only the distinct ones).

The product of its (nonzero) digits is 38880000, while the sum is 54.

The spelling of 56533044355164 in words is "fifty-six trillion, five hundred thirty-three billion, forty-four million, three hundred fifty-five thousand, one hundred sixty-four".