156166219170113 has 2 divisors, whose sum is σ = 156166219170114. Its totient is φ = 156166219170112.

The previous prime is 156166219170083. The next prime is 156166219170151. The reversal of 156166219170113 is 311071912661651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117741444862129 + 38424774307984 = 10850873^2 + 6198772^2 .

It is a cyclic number.

It is not a de Polignac number, because 156166219170113 - 2³⁸ = 155891341263169 is a prime.

It is not a weakly prime, because it can be changed into another prime (156166219170413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78083109585056 + 78083109585057.

It is an arithmetic number, because the mean of its divisors is an integer number (78083109585057).

Almost surely, 2^{156166219170113} is an apocalyptic number.

It is an amenable number.

156166219170113 is a deficient number, since it is larger than the sum of its proper divisors (1).

156166219170113 is an equidigital number, since it uses as much as digits as its factorization.

156166219170113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 50.

The spelling of 156166219170113 in words is "one hundred fifty-six trillion, one hundred sixty-six billion, two hundred nineteen million, one hundred seventy thousand, one hundred thirteen".