158356640220 has 48 divisors (see below), whose sum is σ = 443418208800. Its totient is φ = 42226569216.

The previous prime is 158356640219. The next prime is 158356640231. The reversal of 158356640220 is 22046653851.

158356640220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1795884 + ... + 1881996.

It is an arithmetic number, because the mean of its divisors is an integer number (9237879350).

Almost surely, 2^158356640220 is an apocalyptic number.

158356640220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158356640220 is an abundant number, since it is smaller than the sum of its proper divisors (285061568580).

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

158356640220 is a wasteful number, since it uses less digits than its factorization.

158356640220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116774 (or 116772 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 158356640220 in words is "one hundred fifty-eight billion, three hundred fifty-six million, six hundred forty thousand, two hundred twenty".