158091060961 has 4 divisors (see below), whose sum is σ = 158119962624. Its totient is φ = 158062159300.

The previous prime is 158091060923. The next prime is 158091060979. The reversal of 158091060961 is 169060190851.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 169060190851 = 13883 ⋅12177497.

It is a cyclic number.

It is not a de Polignac number, because 158091060961 - 2⁷ = 158091060833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158091060461) 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, 14442625 + ... + 14453566.

It is an arithmetic number, because the mean of its divisors is an integer number (39529990656).

Almost surely, 2^158091060961 is an apocalyptic number.

It is an amenable number.

158091060961 is a deficient number, since it is larger than the sum of its proper divisors (28901663).

158091060961 is an equidigital number, since it uses as much as digits as its factorization.

158091060961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28901662.

The product of its (nonzero) digits is 116640, while the sum is 46.

The spelling of 158091060961 in words is "one hundred fifty-eight billion, ninety-one million, sixty thousand, nine hundred sixty-one".