23421559965 has 16 divisors (see below), whose sum is σ = 37477267008. Its totient is φ = 12490574976.

The previous prime is 23421559897. The next prime is 23421559999. The reversal of 23421559965 is 56995512432.

It is not a de Polignac number, because 23421559965 - 2¹² = 23421555869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184737 + ... + 284553.

It is an arithmetic number, because the mean of its divisors is an integer number (2342329188).

Almost surely, 2^23421559965 is an apocalyptic number.

It is an amenable number.

23421559965 is a deficient number, since it is larger than the sum of its proper divisors (14055707043).

23421559965 is a wasteful number, since it uses less digits than its factorization.

23421559965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115468.

The product of its digits is 2916000, while the sum is 51.

The spelling of 23421559965 in words is "twenty-three billion, four hundred twenty-one million, five hundred fifty-nine thousand, nine hundred sixty-five".