16652880 has 120 divisors (see below), whose sum is σ = 56726280. Its totient is φ = 4377600.

The previous prime is 16652869. The next prime is 16652969. The reversal of 16652880 is 8825661.

It is a happy number.

16652880 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9809424 + 6843456 = 3132^2 + 2616^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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, 72606 + ... + 72834.

It is an arithmetic number, because the mean of its divisors is an integer number (472719).

Almost surely, 2^16652880 is an apocalyptic number.

16652880 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 16652880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28363140).

16652880 is an abundant number, since it is smaller than the sum of its proper divisors (40073400).

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

16652880 is a wasteful number, since it uses less digits than its factorization.

16652880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 16652880 is about 4080.7940403799. The cubic root of 16652880 is about 255.3660256837.

The spelling of 16652880 in words is "sixteen million, six hundred fifty-two thousand, eight hundred eighty".