16632666 has 12 divisors (see below), whose sum is σ = 36037482. Its totient is φ = 5544216.

The previous prime is 16632653. The next prime is 16632667. The reversal of 16632666 is 66623661.

It can be written as a sum of positive squares in only one way, i.e., 9455625 + 7177041 = 3075^2 + 2679^2 .

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 16632666.

It is not an unprimeable number, because it can be changed into a prime (16632667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 462001 + ... + 462036.

Almost surely, 2^16632666 is an apocalyptic number.

16632666 is an abundant number, since it is smaller than the sum of its proper divisors (19404816).

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

16632666 is a wasteful number, since it uses less digits than its factorization.

16632666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924045 (or 924042 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 16632666 is about 4078.3165644663. The cubic root of 16632666 is about 255.2626590015.

The spelling of 16632666 in words is "sixteen million, six hundred thirty-two thousand, six hundred sixty-six".