158657616 has 240 divisors, whose sum is σ = 514369856. Its totient is φ = 47029248.

The previous prime is 158657593. The next prime is 158657641. The reversal of 158657616 is 616756851.

158657616 is a `hidden beast` number, since 1 + 586 + 5 + 7 + 61 + 6 = 666.

It is a super-2 number, since 2×158657616² = 50344478229606912, which contains 22 as substring.

It is a congruent number.

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 in 47 ways as a sum of consecutive naturals, for example, 2173356 + ... + 2173428.

Almost surely, 2^158657616 is an apocalyptic number.

158657616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158657616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257184928).

158657616 is an abundant number, since it is smaller than the sum of its proper divisors (355712240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158657616 is a wasteful number, since it uses less digits than its factorization.

158657616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 134 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 158657616 is about 12595.9364876138. The cubic root of 158657616 is about 541.3610112816.

The spelling of 158657616 in words is "one hundred fifty-eight million, six hundred fifty-seven thousand, six hundred sixteen".