23660240669 has 4 divisors (see below), whose sum is σ = 25480259196. Its totient is φ = 21840222144.

The previous prime is 23660240647. The next prime is 23660240683. The reversal of 23660240669 is 96604206632.

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 2172492100 + 21487748569 = 46610^2 + 146587^2 .

It is not a de Polignac number, because 23660240669 - 2²⁰ = 23659192093 is a prime.

It is a super-2 number, since 2×23660240669² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23660240609) 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, 910009244 + ... + 910009269.

It is an arithmetic number, because the mean of its divisors is an integer number (6370064799).

Almost surely, 2^23660240669 is an apocalyptic number.

It is an amenable number.

23660240669 is a deficient number, since it is larger than the sum of its proper divisors (1820018527).

23660240669 is a wasteful number, since it uses less digits than its factorization.

23660240669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820018526.

The product of its (nonzero) digits is 559872, while the sum is 44.

The spelling of 23660240669 in words is "twenty-three billion, six hundred sixty million, two hundred forty thousand, six hundred sixty-nine".