16676660 has 192 divisors, whose sum is σ = 50803200. Its totient is φ = 4515840.

The previous prime is 16676651. The next prime is 16676687. The reversal of 16676660 is 6667661.

It is a happy number.

It is a super-2 number, since 2×16676660² = 556221977511200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 980972 + ... + 980988.

It is an arithmetic number, because the mean of its divisors is an integer number (264600).

Almost surely, 2^16676660 is an apocalyptic number.

16676660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16676660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25401600).

16676660 is an abundant number, since it is smaller than the sum of its proper divisors (34126540).

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

16676660 is a wasteful number, since it uses less digits than its factorization.

16676660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 16676660 is about 4083.7066496016. The cubic root of 16676660 is about 255.4875205014.

It can be divided in two parts, 16 and 676660, that added together give a palindrome (676676).

The spelling of 16676660 in words is "sixteen million, six hundred seventy-six thousand, six hundred sixty".