156764328636413 has 2 divisors, whose sum is σ = 156764328636414. Its totient is φ = 156764328636412.

The previous prime is 156764328636397. The next prime is 156764328636449. The reversal of 156764328636413 is 314636823467651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142264850715289 + 14499477921124 = 11927483^2 + 3807818^2 .

It is a cyclic number.

It is not a de Polignac number, because 156764328636413 - 2⁴ = 156764328636397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156764328636413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156704328636413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78382164318206 + 78382164318207.

It is an arithmetic number, because the mean of its divisors is an integer number (78382164318207).

Almost surely, 2^{156764328636413} is an apocalyptic number.

It is an amenable number.

156764328636413 is a deficient number, since it is larger than the sum of its proper divisors (1).

156764328636413 is an equidigital number, since it uses as much as digits as its factorization.

156764328636413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313528320, while the sum is 65.

The spelling of 156764328636413 in words is "one hundred fifty-six trillion, seven hundred sixty-four billion, three hundred twenty-eight million, six hundred thirty-six thousand, four hundred thirteen".