158422440791 has 2 divisors, whose sum is σ = 158422440792. Its totient is φ = 158422440790.

The previous prime is 158422440739. The next prime is 158422440809. The reversal of 158422440791 is 197044224851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158422440791 - 2⁶ = 158422440727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158422440391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79211220395 + 79211220396.

It is an arithmetic number, because the mean of its divisors is an integer number (79211220396).

Almost surely, 2^158422440791 is an apocalyptic number.

158422440791 is a deficient number, since it is larger than the sum of its proper divisors (1).

158422440791 is an equidigital number, since it uses as much as digits as its factorization.

158422440791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 158422440791 in words is "one hundred fifty-eight billion, four hundred twenty-two million, four hundred forty thousand, seven hundred ninety-one".