23652522181 has 2 divisors, whose sum is σ = 23652522182. Its totient is φ = 23652522180.

The previous prime is 23652522137. The next prime is 23652522193. The reversal of 23652522181 is 18122525632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23522356900 + 130165281 = 153370^2 + 11409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23652522181 is a prime.

It is a super-2 number, since 2×23652522181² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23652522181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23652522781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11826261090 + 11826261091.

It is an arithmetic number, because the mean of its divisors is an integer number (11826261091).

Almost surely, 2^23652522181 is an apocalyptic number.

It is an amenable number.

23652522181 is a deficient number, since it is larger than the sum of its proper divisors (1).

23652522181 is an equidigital number, since it uses as much as digits as its factorization.

23652522181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 37.

The spelling of 23652522181 in words is "twenty-three billion, six hundred fifty-two million, five hundred twenty-two thousand, one hundred eighty-one".