158158160691 has 16 divisors (see below), whose sum is σ = 219256567200. Its totient is φ = 101286176768.

The previous prime is 158158160639. The next prime is 158158160707. The reversal of 158158160691 is 196061851851.

It is a cyclic number.

It is not a de Polignac number, because 158158160691 - 2¹⁰ = 158158159667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158158160491) 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, 4596846 + ... + 4631123.

It is an arithmetic number, because the mean of its divisors is an integer number (13703535450).

Almost surely, 2^158158160691 is an apocalyptic number.

158158160691 is a deficient number, since it is larger than the sum of its proper divisors (61098406509).

158158160691 is a wasteful number, since it uses less digits than its factorization.

158158160691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9228198.

The product of its (nonzero) digits is 518400, while the sum is 51.

The spelling of 158158160691 in words is "one hundred fifty-eight billion, one hundred fifty-eight million, one hundred sixty thousand, six hundred ninety-one".