16306604885 has 4 divisors (see below), whose sum is σ = 19567925868. Its totient is φ = 13045283904.

The previous prime is 16306604879. The next prime is 16306604893. The reversal of 16306604885 is 58840660361.

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 8181926116 + 8124678769 = 90454^2 + 90137^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16306604885 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1630660484 + ... + 1630660493.

It is an arithmetic number, because the mean of its divisors is an integer number (4891981467).

Almost surely, 2^16306604885 is an apocalyptic number.

It is an amenable number.

16306604885 is a deficient number, since it is larger than the sum of its proper divisors (3261320983).

16306604885 is an equidigital number, since it uses as much as digits as its factorization.

16306604885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261320982.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 16306604885 in words is "sixteen billion, three hundred six million, six hundred four thousand, eight hundred eighty-five".