156806431344139 has 2 divisors, whose sum is σ = 156806431344140. Its totient is φ = 156806431344138.

The previous prime is 156806431344097. The next prime is 156806431344203. The reversal of 156806431344139 is 931443134608651.

It is a happy number.

156806431344139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 156806431344139 - 2²⁵ = 156806397789707 is a prime.

It is a super-3 number, since 3×156806431344139³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (156806431344539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78403215672069 + 78403215672070.

It is an arithmetic number, because the mean of its divisors is an integer number (78403215672070).

Almost surely, 2^{156806431344139} is an apocalyptic number.

156806431344139 is a deficient number, since it is larger than the sum of its proper divisors (1).

156806431344139 is an equidigital number, since it uses as much as digits as its factorization.

156806431344139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22394880, while the sum is 58.

The spelling of 156806431344139 in words is "one hundred fifty-six trillion, eight hundred six billion, four hundred thirty-one million, three hundred forty-four thousand, one hundred thirty-nine".