61170056113 has 2 divisors, whose sum is σ = 61170056114. Its totient is φ = 61170056112.

The previous prime is 61170056093. The next prime is 61170056117. The reversal of 61170056113 is 31165007116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36287202064 + 24882854049 = 190492^2 + 157743^2 .

It is a cyclic number.

It is not a de Polignac number, because 61170056113 - 2²⁵ = 61136501681 is a prime.

It is not a weakly prime, because it can be changed into another prime (61170056117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30585028056 + 30585028057.

It is an arithmetic number, because the mean of its divisors is an integer number (30585028057).

Almost surely, 2^61170056113 is an apocalyptic number.

It is an amenable number.

61170056113 is a deficient number, since it is larger than the sum of its proper divisors (1).

61170056113 is an equidigital number, since it uses as much as digits as its factorization.

61170056113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 31.

The spelling of 61170056113 in words is "sixty-one billion, one hundred seventy million, fifty-six thousand, one hundred thirteen".