13165564514 has 8 divisors (see below), whose sum is σ = 19751515740. Its totient is φ = 6581725936.

The previous prime is 13165564501. The next prime is 13165564537. The reversal of 13165564514 is 41546556131.

It can be written as a sum of positive squares in 2 ways, for example, as 13129263889 + 36300625 = 114583^2 + 6025^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 512489 + ... + 537564.

Almost surely, 2^13165564514 is an apocalyptic number.

13165564514 is a deficient number, since it is larger than the sum of its proper divisors (6585951226).

13165564514 is a wasteful number, since it uses less digits than its factorization.

13165564514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056324.

The product of its digits is 216000, while the sum is 41.

The spelling of 13165564514 in words is "thirteen billion, one hundred sixty-five million, five hundred sixty-four thousand, five hundred fourteen".