156125421161 has 8 divisors (see below), whose sum is σ = 159336655200. Its totient is φ = 152933021920.

The previous prime is 156125421143. The next prime is 156125421163. The reversal of 156125421161 is 161124521651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 156125421161 - 2³⁴ = 138945551977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156125421163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4691951 + ... + 4725108.

It is an arithmetic number, because the mean of its divisors is an integer number (19917081900).

Almost surely, 2^156125421161 is an apocalyptic number.

It is an amenable number.

156125421161 is a deficient number, since it is larger than the sum of its proper divisors (3211234039).

156125421161 is an equidigital number, since it uses as much as digits as its factorization.

156125421161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9417399.

The product of its digits is 14400, while the sum is 35.

The spelling of 156125421161 in words is "one hundred fifty-six billion, one hundred twenty-five million, four hundred twenty-one thousand, one hundred sixty-one".