16366720 has 64 divisors (see below), whose sum is σ = 39657600. Its totient is φ = 6458368.

The previous prime is 16366709. The next prime is 16366723. The reversal of 16366720 is 2766361.

16366720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (16366723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68361 + ... + 68599.

It is an arithmetic number, because the mean of its divisors is an integer number (619650).

Almost surely, 2^16366720 is an apocalyptic number.

16366720 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 16366720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19828800).

16366720 is an abundant number, since it is smaller than the sum of its proper divisors (23290880).

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

16366720 is a wasteful number, since it uses less digits than its factorization.

16366720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 16366720 is about 4045.5803044804. The cubic root of 16366720 is about 253.8948455959.

The spelling of 16366720 in words is "sixteen million, three hundred sixty-six thousand, seven hundred twenty".