12365631365 has 8 divisors (see below), whose sum is σ = 15200678808. Its totient is φ = 9651224320.

The previous prime is 12365631359. The next prime is 12365631391. The reversal of 12365631365 is 56313656321.

It can be written as a sum of positive squares in 4 ways, for example, as 548636929 + 11816994436 = 23423^2 + 108706^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12365631365 - 2¹⁸ = 12365369221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30159872 + ... + 30160281.

It is an arithmetic number, because the mean of its divisors is an integer number (1900084851).

Almost surely, 2^12365631365 is an apocalyptic number.

It is an amenable number.

12365631365 is a deficient number, since it is larger than the sum of its proper divisors (2835047443).

12365631365 is an equidigital number, since it uses as much as digits as its factorization.

12365631365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60320199.

The product of its digits is 291600, while the sum is 41.

The spelling of 12365631365 in words is "twelve billion, three hundred sixty-five million, six hundred thirty-one thousand, three hundred sixty-five".