16616672 has 48 divisors (see below), whose sum is σ = 34618752. Its totient is φ = 7835520.

The previous prime is 16616669. The next prime is 16616693. The reversal of 16616672 is 27661661.

It is a super-2 number, since 2×16616672² = 552227576711168, which contains 22 as substring.

It is a congruent number.

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, 78647 + ... + 78857.

It is an arithmetic number, because the mean of its divisors is an integer number (721224).

Almost surely, 2^16616672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16616672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17309376).

16616672 is an abundant number, since it is smaller than the sum of its proper divisors (18002080).

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

16616672 is a wasteful number, since it uses less digits than its factorization.

16616672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 343 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 16616672 is about 4076.3552347655. The cubic root of 16616672 is about 255.1808124252.

The spelling of 16616672 in words is "sixteen million, six hundred sixteen thousand, six hundred seventy-two".