16630660 has 24 divisors (see below), whose sum is σ = 35274456. Its totient is φ = 6585600.

The previous prime is 16630657. The next prime is 16630693. The reversal of 16630660 is 6603661.

It can be written as a sum of positive squares in 4 ways, for example, as 3147076 + 13483584 = 1774^2 + 3672^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2097 + ... + 6136.

It is an arithmetic number, because the mean of its divisors is an integer number (1469769).

Almost surely, 2^16630660 is an apocalyptic number.

16630660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16630660 is an abundant number, since it is smaller than the sum of its proper divisors (18643796).

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

16630660 is a wasteful number, since it uses less digits than its factorization.

16630660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8343 (or 8341 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 16630660 is about 4078.0706222428. The cubic root of 16630660 is about 255.2523965160.

The spelling of 16630660 in words is "sixteen million, six hundred thirty thousand, six hundred sixty".