16266880 has 64 divisors (see below), whose sum is σ = 44455680. Its totient is φ = 5575680.

The previous prime is 16266853. The next prime is 16266917. The reversal of 16266880 is 8866261.

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

It is a super-2 number, since 2×16266880² = 529222769868800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2665 + ... + 6295.

It is an arithmetic number, because the mean of its divisors is an integer number (694620).

Almost surely, 2^16266880 is an apocalyptic number.

16266880 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 16266880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22227840).

16266880 is an abundant number, since it is smaller than the sum of its proper divisors (28188800).

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

16266880 is an equidigital number, since it uses as much as digits as its factorization.

16266880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657 (or 3645 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 16266880 is about 4033.2220370319. Note that the first 3 decimals coincide. The cubic root of 16266880 is about 253.3775238393.

The spelling of 16266880 in words is "sixteen million, two hundred sixty-six thousand, eight hundred eighty".