23240651465161 has 4 divisors (see below), whose sum is σ = 25028393885572. Its totient is φ = 21452909044752.

The previous prime is 23240651465131. The next prime is 23240651465203. The reversal of 23240651465161 is 16156415604232.

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 4917594529225 + 18323056935936 = 2217565^2 + 4280544^2 .

It is a cyclic number.

It is not a de Polignac number, because 23240651465161 - 2³³ = 23232061530569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23240651465131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893871210186 + ... + 893871210211.

It is an arithmetic number, because the mean of its divisors is an integer number (6257098471393).

Almost surely, 2^{23240651465161} is an apocalyptic number.

It is an amenable number.

23240651465161 is a deficient number, since it is larger than the sum of its proper divisors (1787742420411).

23240651465161 is a wasteful number, since it uses less digits than its factorization.

23240651465161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787742420410.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 23240651465161 in words is "twenty-three trillion, two hundred forty billion, six hundred fifty-one million, four hundred sixty-five thousand, one hundred sixty-one".