13204659965 has 16 divisors (see below), whose sum is σ = 18111123072. Its totient is φ = 9053686464.

The previous prime is 13204659953. The next prime is 13204660003. The reversal of 13204659965 is 56995640231.

It is a cyclic number.

It is not a de Polignac number, because 13204659965 - 2⁸ = 13204659709 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, 600902 + ... + 622488.

It is an arithmetic number, because the mean of its divisors is an integer number (1131945192).

Almost surely, 2^13204659965 is an apocalyptic number.

It is an amenable number.

13204659965 is a deficient number, since it is larger than the sum of its proper divisors (4906463107).

13204659965 is a wasteful number, since it uses less digits than its factorization.

13204659965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39076.

The product of its (nonzero) digits is 1749600, while the sum is 50.

The spelling of 13204659965 in words is "thirteen billion, two hundred four million, six hundred fifty-nine thousand, nine hundred sixty-five".