16666125 has 48 divisors (see below), whose sum is σ = 32295744. Its totient is φ = 7610400.

The previous prime is 16666093. The next prime is 16666141. The reversal of 16666125 is 52166661.

It is not a de Polignac number, because 16666125 - 2⁵ = 16666093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17922 + ... + 18828.

It is an arithmetic number, because the mean of its divisors is an integer number (672828).

Almost surely, 2^16666125 is an apocalyptic number.

16666125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16666125 is a deficient number, since it is larger than the sum of its proper divisors (15629619).

16666125 is an equidigital number, since it uses as much as digits as its factorization.

16666125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 922 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 16666125 is about 4082.4165637524. The cubic root of 16666125 is about 255.4337102060.

The spelling of 16666125 in words is "sixteen million, six hundred sixty-six thousand, one hundred twenty-five".