16104206565 has 24 divisors (see below), whose sum is σ = 28947810528. Its totient is φ = 8588909520.

The previous prime is 16104206563. The next prime is 16104206603. The reversal of 16104206565 is 56560240161.

It is not a de Polignac number, because 16104206565 - 2¹ = 16104206563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16104206563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6626031 + ... + 6628460.

It is an arithmetic number, because the mean of its divisors is an integer number (1206158772).

Almost surely, 2^16104206565 is an apocalyptic number.

16104206565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16104206565 is a deficient number, since it is larger than the sum of its proper divisors (12843603963).

16104206565 is an equidigital number, since it uses as much as digits as its factorization.

16104206565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13254511 (or 13254499 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 16104206565 in words is "sixteen billion, one hundred four million, two hundred six thousand, five hundred sixty-five".