159790231120 has 80 divisors (see below), whose sum is σ = 423624917520. Its totient is φ = 55528906752.

The previous prime is 159790231093. The next prime is 159790231123. The reversal of 159790231120 is 21132097951.

It can be written as a sum of positive squares in 8 ways, for example, as 32115507264 + 127674723856 = 179208^2 + 357316^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×159790231120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159790231123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4501275 + ... + 4536634.

It is an arithmetic number, because the mean of its divisors is an integer number (5295311469).

Almost surely, 2^159790231120 is an apocalyptic number.

159790231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159790231120 is an abundant number, since it is smaller than the sum of its proper divisors (263834686400).

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

159790231120 is a wasteful number, since it uses less digits than its factorization.

159790231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9037952 (or 9037946 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 40.

The spelling of 159790231120 in words is "one hundred fifty-nine billion, seven hundred ninety million, two hundred thirty-one thousand, one hundred twenty".