56041520616 has 24 divisors (see below), whose sum is σ = 151779118530. Its totient is φ = 18680506848.

The previous prime is 56041520581. The next prime is 56041520621. The reversal of 56041520616 is 61602514065.

56041520616 is a `hidden beast` number, since 5 + 6 + 0 + 4 + 15 + 20 + 616 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56041092900 + 427716 = 236730^2 + 654^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

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 5 ways as a sum of consecutive naturals, for example, 389177155 + ... + 389177298.

Almost surely, 2^56041520616 is an apocalyptic number.

It is an amenable number.

56041520616 is an abundant number, since it is smaller than the sum of its proper divisors (95737597914).

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

56041520616 is a wasteful number, since it uses less digits than its factorization.

56041520616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778354465 (or 778354458 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 56041520616 in words is "fifty-six billion, forty-one million, five hundred twenty thousand, six hundred sixteen".