16683967925 has 24 divisors (see below), whose sum is σ = 21784498560. Its totient is φ = 12640320000.

The previous prime is 16683967921. The next prime is 16683967957. The reversal of 16683967925 is 52976938661.

It is not a de Polignac number, because 16683967925 - 2² = 16683967921 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16683967921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2253029 + ... + 2260421.

It is an arithmetic number, because the mean of its divisors is an integer number (907687440).

Almost surely, 2^16683967925 is an apocalyptic number.

It is an amenable number.

16683967925 is a deficient number, since it is larger than the sum of its proper divisors (5100530635).

16683967925 is a wasteful number, since it uses less digits than its factorization.

16683967925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12173 (or 12168 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 62.

The spelling of 16683967925 in words is "sixteen billion, six hundred eighty-three million, nine hundred sixty-seven thousand, nine hundred twenty-five".