156222612512 has 54 divisors (see below), whose sum is σ = 310940726733. Its totient is φ = 77262792832.

The previous prime is 156222612499. The next prime is 156222612529. The reversal of 156222612512 is 215216222651.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 144123492496 + 12099120016 = 379636^2 + 109996^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=279484.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 239237978 + ... + 239238630.

Almost surely, 2^156222612512 is an apocalyptic number.

It is an amenable number.

156222612512 is a deficient number, since it is larger than the sum of its proper divisors (154718114221).

156222612512 is an frugal number, since it uses more digits than its factorization.

156222612512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530 (or 762 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The spelling of 156222612512 in words is "one hundred fifty-six billion, two hundred twenty-two million, six hundred twelve thousand, five hundred twelve".