23661307583 has 4 divisors (see below), whose sum is σ = 24238412688. Its totient is φ = 23084202480.

The previous prime is 23661307567. The next prime is 23661307589. The reversal of 23661307583 is 38570316632.

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

It is a cyclic number.

It is not a de Polignac number, because 23661307583 - 2⁴ = 23661307567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23661307589) 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, 288552491 + ... + 288552572.

It is an arithmetic number, because the mean of its divisors is an integer number (6059603172).

Almost surely, 2^23661307583 is an apocalyptic number.

23661307583 is a deficient number, since it is larger than the sum of its proper divisors (577105105).

23661307583 is an equidigital number, since it uses as much as digits as its factorization.

23661307583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577105104.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 23661307583 in words is "twenty-three billion, six hundred sixty-one million, three hundred seven thousand, five hundred eighty-three".