156616463121 has 4 divisors (see below), whose sum is σ = 208821950832. Its totient is φ = 104410975412.

The previous prime is 156616463093. The next prime is 156616463153. The reversal of 156616463121 is 121364616651.

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 156616463121 - 2⁷ = 156616462993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156616463221) 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, 26102743851 + ... + 26102743856.

It is an arithmetic number, because the mean of its divisors is an integer number (52205487708).

Almost surely, 2^156616463121 is an apocalyptic number.

It is an amenable number.

156616463121 is a deficient number, since it is larger than the sum of its proper divisors (52205487711).

156616463121 is an equidigital number, since it uses as much as digits as its factorization.

156616463121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52205487710.

The product of its digits is 155520, while the sum is 42.

The spelling of 156616463121 in words is "one hundred fifty-six billion, six hundred sixteen million, four hundred sixty-three thousand, one hundred twenty-one".