3160121172372 has 18 divisors (see below), whose sum is σ = 7988084074698. Its totient is φ = 1053373724112.

The previous prime is 3160121172347. The next prime is 3160121172407. The reversal of 3160121172372 is 2732711210613.

3160121172372 is a `hidden beast` number, since 3 + 1 + 6 + 0 + 1 + 211 + 72 + 372 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1657079500176 + 1503041672196 = 1287276^2 + 1225986^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×3160121172372² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 87781143677 = 3160121172372 / (3 + 1 + 6 + 0 + 1 + 2 + 1 + 1 + 7 + 2 + 3 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43890571803 + ... + 43890571874.

Almost surely, 2^{3160121172372} is an apocalyptic number.

It is an amenable number.

3160121172372 is an abundant number, since it is smaller than the sum of its proper divisors (4827962902326).

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

3160121172372 is a wasteful number, since it uses less digits than its factorization.

3160121172372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87781143687 (or 87781143682 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

Adding to 3160121172372 its reverse (2732711210613), we get a palindrome (5892832382985).

The spelling of 3160121172372 in words is "three trillion, one hundred sixty billion, one hundred twenty-one million, one hundred seventy-two thousand, three hundred seventy-two".