16612668 has 48 divisors (see below), whose sum is σ = 43347360. Its totient is φ = 5501952.

The previous prime is 16612649. The next prime is 16612681. The reversal of 16612668 is 86621661.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20446 + ... + 21242.

It is an arithmetic number, because the mean of its divisors is an integer number (903070).

Almost surely, 2^16612668 is an apocalyptic number.

16612668 is a gapful number since it is divisible by the number (18) 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 16612668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21673680).

16612668 is an abundant number, since it is smaller than the sum of its proper divisors (26734692).

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

16612668 is a wasteful number, since it uses less digits than its factorization.

16612668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 995 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 16612668 is about 4075.8640801675. The cubic root of 16612668 is about 255.1603144167.

The spelling of 16612668 in words is "sixteen million, six hundred twelve thousand, six hundred sixty-eight".