158803377731 has 2 divisors, whose sum is σ = 158803377732. Its totient is φ = 158803377730.

The previous prime is 158803377679. The next prime is 158803377743. The reversal of 158803377731 is 137773308851.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158803377731 - 2²² = 158799183427 is a prime.

It is a super-2 number, since 2×158803377731² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (158803377331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79401688865 + 79401688866.

It is an arithmetic number, because the mean of its divisors is an integer number (79401688866).

Almost surely, 2^158803377731 is an apocalyptic number.

158803377731 is a deficient number, since it is larger than the sum of its proper divisors (1).

158803377731 is an equidigital number, since it uses as much as digits as its factorization.

158803377731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2963520, while the sum is 53.

The spelling of 158803377731 in words is "one hundred fifty-eight billion, eight hundred three million, three hundred seventy-seven thousand, seven hundred thirty-one".