16166880 has 144 divisors (see below), whose sum is σ = 56216160. Its totient is φ = 4230144.

The previous prime is 16166879. The next prime is 16166897. The reversal of 16166880 is 8866161.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×16166880² = 522736017868800, which contains 22 as substring.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148266 + ... + 148374.

It is an arithmetic number, because the mean of its divisors is an integer number (390390).

Almost surely, 2^16166880 is an apocalyptic number.

16166880 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 16166880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28108080).

16166880 is an abundant number, since it is smaller than the sum of its proper divisors (40049280).

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

16166880 is a wasteful number, since it uses less digits than its factorization.

16166880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 16166880 is about 4020.8058893709. The cubic root of 16166880 is about 252.8572468228.

The spelling of 16166880 in words is "sixteen million, one hundred sixty-six thousand, eight hundred eighty".