13362218865 has 24 divisors (see below), whose sum is σ = 24019003008. Its totient is φ = 7126516080.

The previous prime is 13362218833. The next prime is 13362218873. The reversal of 13362218865 is 56881226331.

13362218865 is a `hidden beast` number, since 1 + 3 + 3 + 622 + 18 + 8 + 6 + 5 = 666.

It is not a de Polignac number, because 13362218865 - 2⁵ = 13362218833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13362218865.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5497641 + ... + 5500070.

It is an arithmetic number, because the mean of its divisors is an integer number (1000791792).

Almost surely, 2^13362218865 is an apocalyptic number.

13362218865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13362218865 is a deficient number, since it is larger than the sum of its proper divisors (10656784143).

13362218865 is an equidigital number, since it uses as much as digits as its factorization.

13362218865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10997731 (or 10997719 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The spelling of 13362218865 in words is "thirteen billion, three hundred sixty-two million, two hundred eighteen thousand, eight hundred sixty-five".