16694166925 has 24 divisors (see below), whose sum is σ = 20778357600. Its totient is φ = 13305391680.

The previous prime is 16694166919. The next prime is 16694166953. The reversal of 16694166925 is 52966149661.

16694166925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-16694166925 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 10197207 + ... + 10198843.

It is an arithmetic number, because the mean of its divisors is an integer number (865764900).

Almost surely, 2^16694166925 is an apocalyptic number.

It is an amenable number.

16694166925 is a deficient number, since it is larger than the sum of its proper divisors (4084190675).

16694166925 is a wasteful number, since it uses less digits than its factorization.

16694166925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925 (or 2920 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 55.

The spelling of 16694166925 in words is "sixteen billion, six hundred ninety-four million, one hundred sixty-six thousand, nine hundred twenty-five".