56016055056 has 160 divisors (see below), whose sum is σ = 164785008640. Its totient is φ = 16254577152.

The previous prime is 56016055049. The next prime is 56016055057. The reversal of 56016055056 is 65055061065.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (56016055057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2633295 + ... + 2654481.

It is an arithmetic number, because the mean of its divisors is an integer number (1029906304).

Almost surely, 2^56016055056 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 56016055056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82392504320).

56016055056 is an abundant number, since it is smaller than the sum of its proper divisors (108768953584).

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

56016055056 is a wasteful number, since it uses less digits than its factorization.

56016055056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21453 (or 21447 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 56016055056 in words is "fifty-six billion, sixteen million, fifty-five thousand, fifty-six".