56111111061051 has 16 divisors (see below), whose sum is σ = 74869169633280. Its totient is φ = 37380231578880.

The previous prime is 56111111061023. The next prime is 56111111061077. The reversal of 56111111061051 is 15016011111165.

It is a happy number.

It is not a de Polignac number, because 56111111061051 - 2¹⁹ = 56111110536763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56111111061011) 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, 149106891 + ... + 149482731.

It is an arithmetic number, because the mean of its divisors is an integer number (4679323102080).

Almost surely, 2^{56111111061051} is an apocalyptic number.

56111111061051 is a deficient number, since it is larger than the sum of its proper divisors (18758058572229).

56111111061051 is a wasteful number, since it uses less digits than its factorization.

56111111061051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411866.

The product of its (nonzero) digits is 900, while the sum is 30.

The spelling of 56111111061051 in words is "fifty-six trillion, one hundred eleven billion, one hundred eleven million, sixty-one thousand, fifty-one".