158717664 has 288 divisors, whose sum is σ = 565367040. Its totient is φ = 43110144.

The previous prime is 158717623. The next prime is 158717677. The reversal of 158717664 is 466717851.

158717664 is a `hidden beast` number, since 1 + 587 + 1 + 7 + 6 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 973647 + ... + 973809.

It is an arithmetic number, because the mean of its divisors is an integer number (1963080).

Almost surely, 2^158717664 is an apocalyptic number.

158717664 is a gapful number since it is divisible by the number (14) 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 158717664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282683520).

158717664 is an abundant number, since it is smaller than the sum of its proper divisors (406649376).

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

158717664 is a wasteful number, since it uses less digits than its factorization.

158717664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 198 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 158717664 is about 12598.3198879851. The cubic root of 158717664 is about 541.4292999369.

The spelling of 158717664 in words is "one hundred fifty-eight million, seven hundred seventeen thousand, six hundred sixty-four".