16666074 has 20 divisors (see below), whose sum is σ = 37344714. Its totient is φ = 5555304.

The previous prime is 16666061. The next prime is 16666081. The reversal of 16666074 is 47066661.

It can be written as a sum of positive squares in only one way, i.e., 12638025 + 4028049 = 3555^2 + 2007^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 51277 + ... + 51600.

Almost surely, 2^16666074 is an apocalyptic number.

16666074 is an abundant number, since it is smaller than the sum of its proper divisors (20678640).

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

16666074 is a wasteful number, since it uses less digits than its factorization.

16666074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102891 (or 102882 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 16666074 is about 4082.4103174473. The cubic root of 16666074 is about 255.4334496549.

The spelling of 16666074 in words is "sixteen million, six hundred sixty-six thousand, seventy-four".