156156710081 has 2 divisors, whose sum is σ = 156156710082. Its totient is φ = 156156710080.

The previous prime is 156156710057. The next prime is 156156710183. The reversal of 156156710081 is 180017651651.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87935971600 + 68220738481 = 296540^2 + 261191^2 .

It is a cyclic number.

It is not a de Polignac number, because 156156710081 - 2²² = 156152515777 is a prime.

It is a super-2 number, since 2×156156710081² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (156156710011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78078355040 + 78078355041.

It is an arithmetic number, because the mean of its divisors is an integer number (78078355041).

Almost surely, 2^156156710081 is an apocalyptic number.

It is an amenable number.

156156710081 is a deficient number, since it is larger than the sum of its proper divisors (1).

156156710081 is an equidigital number, since it uses as much as digits as its factorization.

156156710081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 41.

The spelling of 156156710081 in words is "one hundred fifty-six billion, one hundred fifty-six million, seven hundred ten thousand, eighty-one".