158871801611 has 16 divisors (see below), whose sum is σ = 168761815200. Its totient is φ = 149135390208.

The previous prime is 158871801601. The next prime is 158871801643. The reversal of 158871801611 is 116108178851.

It is a cyclic number.

It is not a de Polignac number, because 158871801611 - 2²⁶ = 158804692747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158871801601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9431945 + ... + 9448773.

It is an arithmetic number, because the mean of its divisors is an integer number (10547613450).

Almost surely, 2^158871801611 is an apocalyptic number.

158871801611 is a deficient number, since it is larger than the sum of its proper divisors (9890013589).

158871801611 is a wasteful number, since it uses less digits than its factorization.

158871801611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21358.

The product of its (nonzero) digits is 107520, while the sum is 47.

The spelling of 158871801611 in words is "one hundred fifty-eight billion, eight hundred seventy-one million, eight hundred one thousand, six hundred eleven".