13345784165 has 16 divisors (see below), whose sum is σ = 18442512000. Its totient is φ = 9081533760.

The previous prime is 13345784147. The next prime is 13345784191. The reversal of 13345784165 is 56148754331.

It is not a de Polignac number, because 13345784165 - 2²⁶ = 13278675301 is a prime.

It is a Curzon number.

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, 1450790 + ... + 1459959.

It is an arithmetic number, because the mean of its divisors is an integer number (1152657000).

Almost surely, 2^13345784165 is an apocalyptic number.

It is an amenable number.

13345784165 is a deficient number, since it is larger than the sum of its proper divisors (5096727835).

13345784165 is a wasteful number, since it uses less digits than its factorization.

13345784165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910892.

The product of its digits is 1209600, while the sum is 47.

The spelling of 13345784165 in words is "thirteen billion, three hundred forty-five million, seven hundred eighty-four thousand, one hundred sixty-five".