16916660 has 12 divisors (see below), whose sum is σ = 35525028. Its totient is φ = 6766656.

The previous prime is 16916611. The next prime is 16916671. The reversal of 16916660 is 6661961.

It can be written as a sum of positive squares in 2 ways, for example, as 2748964 + 14167696 = 1658^2 + 3764^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16916660.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422897 + ... + 422936.

It is an arithmetic number, because the mean of its divisors is an integer number (2960419).

Almost surely, 2^16916660 is an apocalyptic number.

16916660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16916660 is an abundant number, since it is smaller than the sum of its proper divisors (18608368).

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

16916660 is a wasteful number, since it uses less digits than its factorization.

16916660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845842 (or 845840 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 16916660 is about 4112.9867493100. The cubic root of 16916660 is about 256.7072929076.

It can be divided in two parts, 16916 and 660, that added together give a cube (17576 = 26³).

The spelling of 16916660 in words is "sixteen million, nine hundred sixteen thousand, six hundred sixty".