156044603161 has 4 divisors (see below), whose sum is σ = 156048893712. Its totient is φ = 156040312612.

The previous prime is 156044603101. The next prime is 156044603177. The reversal of 156044603161 is 161306440651.

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, and also an emirpimes, since its reverse is a distinct semiprime: 161306440651 = 307633 ⋅524347.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156044603161 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 156044603161.

It is not an unprimeable number, because it can be changed into a prime (156044603101) 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, 2090251 + ... + 2163616.

It is an arithmetic number, because the mean of its divisors is an integer number (39012223428).

Almost surely, 2^156044603161 is an apocalyptic number.

It is an amenable number.

156044603161 is a deficient number, since it is larger than the sum of its proper divisors (4290551).

156044603161 is an equidigital number, since it uses as much as digits as its factorization.

156044603161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290550.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 156044603161 in words is "one hundred fifty-six billion, forty-four million, six hundred three thousand, one hundred sixty-one".