11056081957 has 2 divisors, whose sum is σ = 11056081958. Its totient is φ = 11056081956.

The previous prime is 11056081951. The next prime is 11056081987. The reversal of 11056081957 is 75918065011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6871415236 + 4184666721 = 82894^2 + 64689^2 .

It is a cyclic number.

It is not a de Polignac number, because 11056081957 - 2²⁷ = 10921864229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11056081951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5528040978 + 5528040979.

It is an arithmetic number, because the mean of its divisors is an integer number (5528040979).

Almost surely, 2^11056081957 is an apocalyptic number.

It is an amenable number.

11056081957 is a deficient number, since it is larger than the sum of its proper divisors (1).

11056081957 is an equidigital number, since it uses as much as digits as its factorization.

11056081957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 43.

The spelling of 11056081957 in words is "eleven billion, fifty-six million, eighty-one thousand, nine hundred fifty-seven".