13365462661 has 4 divisors (see below), whose sum is σ = 13365695392. Its totient is φ = 13365229932.

The previous prime is 13365462653. The next prime is 13365462683. The reversal of 13365462661 is 16626456331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13365462661 - 2³ = 13365462653 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 (13365466661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38320 + ... + 167926.

It is an arithmetic number, because the mean of its divisors is an integer number (3341423848).

Almost surely, 2^13365462661 is an apocalyptic number.

It is an amenable number.

13365462661 is a deficient number, since it is larger than the sum of its proper divisors (232731).

13365462661 is a wasteful number, since it uses less digits than its factorization.

13365462661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232730.

The product of its digits is 466560, while the sum is 43.

The spelling of 13365462661 in words is "thirteen billion, three hundred sixty-five million, four hundred sixty-two thousand, six hundred sixty-one".