156107137409 has 4 divisors (see below), whose sum is σ = 157230210480. Its totient is φ = 154984064340.

The previous prime is 156107137397. The next prime is 156107137429. The reversal of 156107137409 is 904731701651.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 156107137409 - 2⁴ = 156107137393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 156107137409.

It is not an unprimeable number, because it can be changed into a prime (156107137429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561536327 + ... + 561536604.

It is an arithmetic number, because the mean of its divisors is an integer number (39307552620).

Almost surely, 2^156107137409 is an apocalyptic number.

It is an amenable number.

156107137409 is a deficient number, since it is larger than the sum of its proper divisors (1123073071).

156107137409 is a wasteful number, since it uses less digits than its factorization.

156107137409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123073070.

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 156107137409 in words is "one hundred fifty-six billion, one hundred seven million, one hundred thirty-seven thousand, four hundred nine".