16269368865 has 16 divisors (see below), whose sum is σ = 26457729216. Its totient is φ = 8534750400.

The previous prime is 16269368861. The next prime is 16269368873. The reversal of 16269368865 is 56886396261.

It is a happy number.

It is not a de Polignac number, because 16269368865 - 2² = 16269368861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16269368799 and 16269368808.

It is not an unprimeable number, because it can be changed into a prime (16269368861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8889451 + ... + 8891280.

It is an arithmetic number, because the mean of its divisors is an integer number (1653608076).

Almost surely, 2^16269368865 is an apocalyptic number.

16269368865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16269368865 is a deficient number, since it is larger than the sum of its proper divisors (10188360351).

16269368865 is a wasteful number, since it uses less digits than its factorization.

16269368865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17780800.

The product of its digits is 22394880, while the sum is 60.

The spelling of 16269368865 in words is "sixteen billion, two hundred sixty-nine million, three hundred sixty-eight thousand, eight hundred sixty-five".