2255564721051 has 8 divisors (see below), whose sum is σ = 3341577364560. Its totient is φ = 1503709814016.

The previous prime is 2255564721043. The next prime is 2255564721079. The reversal of 2255564721051 is 1501274655522.

2255564721051 is a `hidden beast` number, since 2 + 2 + 5 + 5 + 564 + 72 + 10 + 5 + 1 = 666.

It is not a de Polignac number, because 2255564721051 - 2³ = 2255564721043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2255564720988 and 2255564721006.

It is not an unprimeable number, because it can be changed into a prime (2255564721031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41769717030 + ... + 41769717083.

It is an arithmetic number, because the mean of its divisors is an integer number (417697170570).

Almost surely, 2^{2255564721051} is an apocalyptic number.

2255564721051 is a deficient number, since it is larger than the sum of its proper divisors (1086012643509).

2255564721051 is an equidigital number, since it uses as much as digits as its factorization.

2255564721051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83539434122 (or 83539434116 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 45.

The spelling of 2255564721051 in words is "two trillion, two hundred fifty-five billion, five hundred sixty-four million, seven hundred twenty-one thousand, fifty-one".