159901409880 has 160 divisors (see below), whose sum is σ = 555979366800. Its totient is φ = 41169993984.

The previous prime is 159901409839. The next prime is 159901409887. The reversal of 159901409880 is 88904109951.

159901409880 is a `hidden beast` number, since 1 + 599 + 0 + 1 + 40 + 9 + 8 + 8 + 0 = 666.

It is a super-2 number, since 2×159901409880² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159901409887) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 756942 + ... + 944861.

Almost surely, 2^159901409880 is an apocalyptic number.

159901409880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159901409880 is an abundant number, since it is smaller than the sum of its proper divisors (396077956920).

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

159901409880 is a wasteful number, since it uses less digits than its factorization.

159901409880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701855 (or 1701842 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 54.

The spelling of 159901409880 in words is "one hundred fifty-nine billion, nine hundred one million, four hundred nine thousand, eight hundred eighty".