16375505665 has 16 divisors (see below), whose sum is σ = 20027824128. Its totient is φ = 12849086016.

The previous prime is 16375505651. The next prime is 16375505717. The reversal of 16375505665 is 56650557361.

It is a cyclic number.

It is not a de Polignac number, because 16375505665 - 2⁷ = 16375505537 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 1011424 + ... + 1027486.

It is an arithmetic number, because the mean of its divisors is an integer number (1251739008).

Almost surely, 2^16375505665 is an apocalyptic number.

It is an amenable number.

16375505665 is a deficient number, since it is larger than the sum of its proper divisors (3652318463).

16375505665 is a wasteful number, since it uses less digits than its factorization.

16375505665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19968.

The product of its (nonzero) digits is 2835000, while the sum is 49.

The spelling of 16375505665 in words is "sixteen billion, three hundred seventy-five million, five hundred five thousand, six hundred sixty-five".