158916664 has 16 divisors (see below), whose sum is σ = 307581120. Its totient is φ = 76895040.

The previous prime is 158916661. The next prime is 158916671. The reversal of 158916664 is 466619851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158916661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320149 + ... + 320644.

It is an arithmetic number, because the mean of its divisors is an integer number (19223820).

Almost surely, 2^158916664 is an apocalyptic number.

It is an amenable number.

158916664 is a deficient number, since it is larger than the sum of its proper divisors (148664456).

158916664 is a wasteful number, since it uses less digits than its factorization.

158916664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640830 (or 640826 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The square root of 158916664 is about 12606.2152924659. The cubic root of 158916664 is about 541.6554865490.

The spelling of 158916664 in words is "one hundred fifty-eight million, nine hundred sixteen thousand, six hundred sixty-four".