23700980161 has 4 divisors (see below), whose sum is σ = 23705175492. Its totient is φ = 23696784832.

The previous prime is 23700980141. The next prime is 23700980189. The reversal of 23700980161 is 16108900732.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11029200400 + 12671779761 = 105020^2 + 112569^2 .

It is a cyclic number.

It is not a de Polignac number, because 23700980161 - 2⁵ = 23700980129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23700980161.

It is not an unprimeable number, because it can be changed into a prime (23700980101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089180 + ... + 2100493.

It is an arithmetic number, because the mean of its divisors is an integer number (5926293873).

Almost surely, 2^23700980161 is an apocalyptic number.

It is an amenable number.

23700980161 is a deficient number, since it is larger than the sum of its proper divisors (4195331).

23700980161 is an equidigital number, since it uses as much as digits as its factorization.

23700980161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195330.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 23700980161 in words is "twenty-three billion, seven hundred million, nine hundred eighty thousand, one hundred sixty-one".