56011100061 has 16 divisors (see below), whose sum is σ = 86796864000. Its totient is φ = 31463861808.

The previous prime is 56011100059. The next prime is 56011100099. The reversal of 56011100061 is 16000111065.

56011100061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56011100061 - 2¹ = 56011100059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56011100021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22602111 + ... + 22604588.

It is an arithmetic number, because the mean of its divisors is an integer number (5424804000).

Almost surely, 2^56011100061 is an apocalyptic number.

It is an amenable number.

56011100061 is a deficient number, since it is larger than the sum of its proper divisors (30785763939).

56011100061 is a wasteful number, since it uses less digits than its factorization.

56011100061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45206768.

The product of its (nonzero) digits is 180, while the sum is 21.

The spelling of 56011100061 in words is "fifty-six billion, eleven million, one hundred thousand, sixty-one".