13895366565 has 16 divisors (see below), whose sum is σ = 22500451008. Its totient is φ = 7321574016.

The previous prime is 13895366519. The next prime is 13895366567. The reversal of 13895366565 is 56566359831.

It is not a de Polignac number, because 13895366565 - 2⁹ = 13895366053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13895366567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5579224 + ... + 5581713.

It is an arithmetic number, because the mean of its divisors is an integer number (1406278188).

Almost surely, 2^13895366565 is an apocalyptic number.

13895366565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13895366565 is a deficient number, since it is larger than the sum of its proper divisors (8605084443).

13895366565 is a wasteful number, since it uses less digits than its factorization.

13895366565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161028.

The product of its digits is 17496000, while the sum is 57.

The spelling of 13895366565 in words is "thirteen billion, eight hundred ninety-five million, three hundred sixty-six thousand, five hundred sixty-five".