16630506 has 12 divisors (see below), whose sum is σ = 36032802. Its totient is φ = 5543496.

The previous prime is 16630489. The next prime is 16630513. The reversal of 16630506 is 60503661.

It can be written as a sum of positive squares in only one way, i.e., 16281225 + 349281 = 4035^2 + 591^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16630506.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 461941 + ... + 461976.

Almost surely, 2^16630506 is an apocalyptic number.

16630506 is an abundant number, since it is smaller than the sum of its proper divisors (19402296).

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

16630506 is a wasteful number, since it uses less digits than its factorization.

16630506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923925 (or 923922 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 16630506 is about 4078.0517407213. The cubic root of 16630506 is about 255.2516086341.

The spelling of 16630506 in words is "sixteen million, six hundred thirty thousand, five hundred six".