23331632661 has 16 divisors (see below), whose sum is σ = 34837555200. Its totient is φ = 15431943744.

The previous prime is 23331632657. The next prime is 23331632669. The reversal of 23331632661 is 16623613332.

23331632661 is a `hidden beast` number, since 2 + 3 + 331 + 63 + 266 + 1 = 666.

It is not a de Polignac number, because 23331632661 - 2² = 23331632657 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23331632669) 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 15 ways as a sum of consecutive naturals, for example, 3398676 + ... + 3405533.

It is an arithmetic number, because the mean of its divisors is an integer number (2177347200).

Almost surely, 2^23331632661 is an apocalyptic number.

It is an amenable number.

23331632661 is a deficient number, since it is larger than the sum of its proper divisors (11505922539).

23331632661 is a wasteful number, since it uses less digits than its factorization.

23331632661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804345 (or 6804339 counting only the distinct ones).

The product of its digits is 69984, while the sum is 36.

The spelling of 23331632661 in words is "twenty-three billion, three hundred thirty-one million, six hundred thirty-two thousand, six hundred sixty-one".