16750608865 has 4 divisors (see below), whose sum is σ = 20100730644. Its totient is φ = 13400487088.

The previous prime is 16750608859. The next prime is 16750608869. The reversal of 16750608865 is 56880605761.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6097891921 + 10652716944 = 78089^2 + 103212^2 .

It is a cyclic number.

It is not a de Polignac number, because 16750608865 - 2³ = 16750608857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16750608869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675060882 + ... + 1675060891.

It is an arithmetic number, because the mean of its divisors is an integer number (5025182661).

Almost surely, 2^16750608865 is an apocalyptic number.

It is an amenable number.

16750608865 is a deficient number, since it is larger than the sum of its proper divisors (3350121779).

16750608865 is an equidigital number, since it uses as much as digits as its factorization.

16750608865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350121778.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 16750608865 in words is "sixteen billion, seven hundred fifty million, six hundred eight thousand, eight hundred sixty-five".