16815949464 has 16 divisors (see below), whose sum is σ = 42039873720. Its totient is φ = 5605316480.

The previous prime is 16815949453. The next prime is 16815949471. The reversal of 16815949464 is 46494951861.

16815949464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350332257 + ... + 350332304.

Almost surely, 2^16815949464 is an apocalyptic number.

It is an amenable number.

16815949464 is an abundant number, since it is smaller than the sum of its proper divisors (25223924256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16815949464 is a wasteful number, since it uses less digits than its factorization.

16815949464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700664570 (or 700664566 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The spelling of 16815949464 in words is "sixteen billion, eight hundred fifteen million, nine hundred forty-nine thousand, four hundred sixty-four".