158366779 has 2 divisors, whose sum is σ = 158366780. Its totient is φ = 158366778.

The previous prime is 158366737. The next prime is 158366783. The reversal of 158366779 is 977663851.

It is a strong prime.

It is an emirp because it is prime and its reverse (977663851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158366779 - 2²⁷ = 24149051 is a prime.

It is not a weakly prime, because it can be changed into another prime (158369779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79183389 + 79183390.

It is an arithmetic number, because the mean of its divisors is an integer number (79183390).

Almost surely, 2^158366779 is an apocalyptic number.

158366779 is a deficient number, since it is larger than the sum of its proper divisors (1).

158366779 is an equidigital number, since it uses as much as digits as its factorization.

158366779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 52.

The square root of 158366779 is about 12584.3863179736. The cubic root of 158366779 is about 541.0300173654.

The spelling of 158366779 in words is "one hundred fifty-eight million, three hundred sixty-six thousand, seven hundred seventy-nine".