158628013920 has 144 divisors (see below), whose sum is σ = 546284859120. Its totient is φ = 41912681472.

The previous prime is 158628013891. The next prime is 158628013961. The reversal of 158628013920 is 29310826851.

158628013920 is a `hidden beast` number, since 1 + 5 + 8 + 628 + 0 + 13 + 9 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348354 + ... + 662273.

It is an arithmetic number, because the mean of its divisors is an integer number (3793644855).

Almost surely, 2^158628013920 is an apocalyptic number.

158628013920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158628013920 is an abundant number, since it is smaller than the sum of its proper divisors (387656845200).

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

158628013920 is a wasteful number, since it uses less digits than its factorization.

158628013920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010757 (or 1010746 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 158628013920 in words is "one hundred fifty-eight billion, six hundred twenty-eight million, thirteen thousand, nine hundred twenty".