158657216 has 14 divisors (see below), whose sum is σ = 314835540. Its totient is φ = 79328576.

The previous prime is 158657207. The next prime is 158657227. The reversal of 158657216 is 612756851.

It is a super-2 number, since 2×158657216² = 50344224377741312, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1239446 + ... + 1239573.

Almost surely, 2^158657216 is an apocalyptic number.

158657216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

158657216 is a deficient number, since it is larger than the sum of its proper divisors (156178324).

158657216 is an equidigital number, since it uses as much as digits as its factorization.

158657216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479031 (or 2479021 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 158657216 is about 12595.9206094672. The cubic root of 158657216 is about 541.3605563301.

The spelling of 158657216 in words is "one hundred fifty-eight million, six hundred fifty-seven thousand, two hundred sixteen".