158657815813 has 8 divisors (see below), whose sum is σ = 181326209600. Its totient is φ = 135990169920.

The previous prime is 158657815777. The next prime is 158657815817. The reversal of 158657815813 is 318518756851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158657815813 - 2¹⁷ = 158657684741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158657815817) 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 7 ways as a sum of consecutive naturals, for example, 383773 + ... + 681613.

It is an arithmetic number, because the mean of its divisors is an integer number (22665776200).

Almost surely, 2^158657815813 is an apocalyptic number.

It is an amenable number.

158657815813 is a deficient number, since it is larger than the sum of its proper divisors (22668393787).

158657815813 is an equidigital number, since it uses as much as digits as its factorization.

158657815813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373947.

The product of its digits is 8064000, while the sum is 58.

The spelling of 158657815813 in words is "one hundred fifty-eight billion, six hundred fifty-seven million, eight hundred fifteen thousand, eight hundred thirteen".