16666492 has 12 divisors (see below), whose sum is σ = 29353240. Its totient is φ = 8279856.

The previous prime is 16666487. The next prime is 16666493. The reversal of 16666492 is 29466661.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16666493) by changing a digit.

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, 12642 + ... + 13897.

Almost surely, 2^16666492 is an apocalyptic number.

It is an amenable number.

16666492 is a deficient number, since it is larger than the sum of its proper divisors (12686748).

16666492 is a wasteful number, since it uses less digits than its factorization.

16666492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26700 (or 26698 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The square root of 16666492 is about 4082.4615123722. The cubic root of 16666492 is about 255.4355851366.

The spelling of 16666492 in words is "sixteen million, six hundred sixty-six thousand, four hundred ninety-two".