16306668 has 36 divisors (see below), whose sum is σ = 47108880. Its totient is φ = 4658976.

The previous prime is 16306649. The next prime is 16306679. The reversal of 16306668 is 86660361.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32103 + ... + 32606.

It is an arithmetic number, because the mean of its divisors is an integer number (1308580).

Almost surely, 2^16306668 is an apocalyptic number.

16306668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16306668 is an abundant number, since it is smaller than the sum of its proper divisors (30802212).

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

16306668 is a wasteful number, since it uses less digits than its factorization.

16306668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64726 (or 64721 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 16306668 is about 4038.1515573341. The cubic root of 16306668 is about 253.5839386843.

The spelling of 16306668 in words is "sixteen million, three hundred six thousand, six hundred sixty-eight".