16265798659 has 4 divisors (see below), whose sum is σ = 17744507640. Its totient is φ = 14787089680.

The previous prime is 16265798639. The next prime is 16265798669. The reversal of 16265798659 is 95689756261.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16265798659 - 2²³ = 16257410051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16265798659.

It is not an unprimeable number, because it can be changed into a prime (16265798639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739354474 + ... + 739354495.

It is an arithmetic number, because the mean of its divisors is an integer number (4436126910).

Almost surely, 2^16265798659 is an apocalyptic number.

16265798659 is a deficient number, since it is larger than the sum of its proper divisors (1478708981).

16265798659 is a wasteful number, since it uses less digits than its factorization.

16265798659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478708980.

The product of its digits is 48988800, while the sum is 64.

The spelling of 16265798659 in words is "sixteen billion, two hundred sixty-five million, seven hundred ninety-eight thousand, six hundred fifty-nine".