156000538899 has 20 divisors (see below), whose sum is σ = 233052701464. Its totient is φ = 103993727904.

The previous prime is 156000538867. The next prime is 156000539039. The reversal of 156000538899 is 998835000651.

It is a happy number.

156000538899 is a `hidden beast` number, since 15 + 6 + 0 + 0 + 0 + 538 + 8 + 99 = 666.

It is not a de Polignac number, because 156000538899 - 2⁵ = 156000538867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156000538849) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1442844 + ... + 1547190.

Almost surely, 2^156000538899 is an apocalyptic number.

156000538899 is a deficient number, since it is larger than the sum of its proper divisors (77052162565).

156000538899 is a wasteful number, since it uses less digits than its factorization.

156000538899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122816 (or 122807 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 54.

The spelling of 156000538899 in words is "one hundred fifty-six billion, five hundred thirty-eight thousand, eight hundred ninety-nine".