156645496057 has 2 divisors, whose sum is σ = 156645496058. Its totient is φ = 156645496056.

The previous prime is 156645496009. The next prime is 156645496061. The reversal of 156645496057 is 750694546651.

156645496057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150405128041 + 6240368016 = 387821^2 + 78996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156645496057 is a prime.

It is a super-2 number, since 2×156645496057² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156645495992 and 156645496010.

It is not a weakly prime, because it can be changed into another prime (156645496757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78322748028 + 78322748029.

It is an arithmetic number, because the mean of its divisors is an integer number (78322748029).

Almost surely, 2^156645496057 is an apocalyptic number.

It is an amenable number.

156645496057 is a deficient number, since it is larger than the sum of its proper divisors (1).

156645496057 is an equidigital number, since it uses as much as digits as its factorization.

156645496057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216000, while the sum is 58.

The spelling of 156645496057 in words is "one hundred fifty-six billion, six hundred forty-five million, four hundred ninety-six thousand, fifty-seven".