158178668579 has 16 divisors (see below), whose sum is σ = 160575838560. Its totient is φ = 155796537600.

The previous prime is 158178668561. The next prime is 158178668629. The reversal of 158178668579 is 975866871851.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158178668579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158178628579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25923629 + ... + 25929729.

It is an arithmetic number, because the mean of its divisors is an integer number (10035989910).

Almost surely, 2^158178668579 is an apocalyptic number.

158178668579 is a deficient number, since it is larger than the sum of its proper divisors (2397169981).

158178668579 is an equidigital number, since it uses as much as digits as its factorization.

158178668579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270.

The product of its digits is 203212800, while the sum is 71.

The spelling of 158178668579 in words is "one hundred fifty-eight billion, one hundred seventy-eight million, six hundred sixty-eight thousand, five hundred seventy-nine".