159971892860 has 24 divisors (see below), whose sum is σ = 361782589056. Its totient is φ = 59066544960.

The previous prime is 159971892841. The next prime is 159971892869. The reversal of 159971892860 is 68298179951.

It is a happy number.

It is a super-2 number, since 2×159971892860² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159971892869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307637996 + ... + 307638515.

It is an arithmetic number, because the mean of its divisors is an integer number (15074274544).

Almost surely, 2^159971892860 is an apocalyptic number.

159971892860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159971892860 is an abundant number, since it is smaller than the sum of its proper divisors (201810696196).

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

159971892860 is a wasteful number, since it uses less digits than its factorization.

159971892860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615276533 (or 615276531 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 65.

The spelling of 159971892860 in words is "one hundred fifty-nine billion, nine hundred seventy-one million, eight hundred ninety-two thousand, eight hundred sixty".