23281937161 has 32 divisors (see below), whose sum is σ = 28254191616. Its totient is φ = 18765864000.

The previous prime is 23281937153. The next prime is 23281937171. The reversal of 23281937161 is 16173918232.

It is a cyclic number.

It is not a de Polignac number, because 23281937161 - 2³ = 23281937153 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (23281937171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1088076 + ... + 1109266.

It is an arithmetic number, because the mean of its divisors is an integer number (882943488).

Almost surely, 2^23281937161 is an apocalyptic number.

It is an amenable number.

23281937161 is a deficient number, since it is larger than the sum of its proper divisors (4972254455).

23281937161 is a wasteful number, since it uses less digits than its factorization.

23281937161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21373.

The product of its digits is 108864, while the sum is 43.

The spelling of 23281937161 in words is "twenty-three billion, two hundred eighty-one million, nine hundred thirty-seven thousand, one hundred sixty-one".