156806431344097 has 2 divisors, whose sum is σ = 156806431344098. Its totient is φ = 156806431344096.

The previous prime is 156806431344053. The next prime is 156806431344139. The reversal of 156806431344097 is 790443134608651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153459174482496 + 3347256861601 = 12387864^2 + 1829551^2 .

It is a cyclic number.

It is not a de Polignac number, because 156806431344097 - 2¹¹ = 156806431342049 is a prime.

It is not a weakly prime, because it can be changed into another prime (156806431344697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78403215672048 + 78403215672049.

It is an arithmetic number, because the mean of its divisors is an integer number (78403215672049).

Almost surely, 2^{156806431344097} is an apocalyptic number.

It is an amenable number.

156806431344097 is a deficient number, since it is larger than the sum of its proper divisors (1).

156806431344097 is an equidigital number, since it uses as much as digits as its factorization.

156806431344097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52254720, while the sum is 61.

The spelling of 156806431344097 in words is "one hundred fifty-six trillion, eight hundred six billion, four hundred thirty-one million, three hundred forty-four thousand, ninety-seven".