23735661172 has 12 divisors (see below), whose sum is σ = 42660039940. Its totient is φ = 11547078336.

The previous prime is 23735661113. The next prime is 23735661199. The reversal of 23735661172 is 27116653732.

It can be written as a sum of positive squares in 2 ways, for example, as 22887453796 + 848207376 = 151286^2 + 29124^2 .

It is a super-2 number, since 2×23735661172² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80187897 + ... + 80188192.

Almost surely, 2^23735661172 is an apocalyptic number.

It is an amenable number.

23735661172 is a deficient number, since it is larger than the sum of its proper divisors (18924378768).

23735661172 is a wasteful number, since it uses less digits than its factorization.

23735661172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160376130 (or 160376128 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The spelling of 23735661172 in words is "twenty-three billion, seven hundred thirty-five million, six hundred sixty-one thousand, one hundred seventy-two".