16399753365 has 32 divisors (see below), whose sum is σ = 27394373376. Its totient is φ = 8361999360.

The previous prime is 16399753351. The next prime is 16399753387. The reversal of 16399753365 is 56335799361.

It is not a de Polignac number, because 16399753365 - 2⁵ = 16399753333 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 734547 + ... + 756543.

It is an arithmetic number, because the mean of its divisors is an integer number (856074168).

Almost surely, 2^16399753365 is an apocalyptic number.

16399753365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16399753365 is a deficient number, since it is larger than the sum of its proper divisors (10994620011).

16399753365 is a wasteful number, since it uses less digits than its factorization.

16399753365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24189.

The product of its digits is 13778100, while the sum is 57.

The spelling of 16399753365 in words is "sixteen billion, three hundred ninety-nine million, seven hundred fifty-three thousand, three hundred sixty-five".