23456433661 has 4 divisors (see below), whose sum is σ = 23457383712. Its totient is φ = 23455483612.

The previous prime is 23456433629. The next prime is 23456433673. The reversal of 23456433661 is 16633465432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23456433661 - 2⁵ = 23456433629 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 (23456433601) 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, 436975 + ... + 487708.

It is an arithmetic number, because the mean of its divisors is an integer number (5864345928).

Almost surely, 2^23456433661 is an apocalyptic number.

It is an amenable number.

23456433661 is a deficient number, since it is larger than the sum of its proper divisors (950051).

23456433661 is an equidigital number, since it uses as much as digits as its factorization.

23456433661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950050.

The product of its digits is 933120, while the sum is 43.

The spelling of 23456433661 in words is "twenty-three billion, four hundred fifty-six million, four hundred thirty-three thousand, six hundred sixty-one".