12207356465 has 4 divisors (see below), whose sum is σ = 14648827764. Its totient is φ = 9765885168.

The previous prime is 12207356449. The next prime is 12207356503. The reversal of 12207356465 is 56465370221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7100253169 + 5107103296 = 84263^2 + 71464^2 .

It is a cyclic number.

It is not a de Polignac number, because 12207356465 - 2⁴ = 12207356449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1220735642 + ... + 1220735651.

It is an arithmetic number, because the mean of its divisors is an integer number (3662206941).

Almost surely, 2^12207356465 is an apocalyptic number.

It is an amenable number.

12207356465 is a deficient number, since it is larger than the sum of its proper divisors (2441471299).

12207356465 is an equidigital number, since it uses as much as digits as its factorization.

12207356465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441471298.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 12207356465 in words is "twelve billion, two hundred seven million, three hundred fifty-six thousand, four hundred sixty-five".