23612055565 has 36 divisors (see below), whose sum is σ = 34914018708. Its totient is φ = 15232304640.

The previous prime is 23612055563. The next prime is 23612055589. The reversal of 23612055565 is 56555021632.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9327503241 + 14284552324 = 96579^2 + 119518^2 .

It is not a de Polignac number, because 23612055565 - 2¹ = 23612055563 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 (23612055563) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9915675 + ... + 9918055.

It is an arithmetic number, because the mean of its divisors is an integer number (969833853).

Almost surely, 2^23612055565 is an apocalyptic number.

It is an amenable number.

23612055565 is a deficient number, since it is larger than the sum of its proper divisors (11301963143).

23612055565 is an frugal number, since it uses more digits than its factorization.

23612055565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798 (or 2410 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 23612055565 in words is "twenty-three billion, six hundred twelve million, fifty-five thousand, five hundred sixty-five".