16252866 has 128 divisors (see below), whose sum is σ = 45465600. Its totient is φ = 4199040.

The previous prime is 16252861. The next prime is 16252871. The reversal of 16252866 is 66825261.

16252866 is a `hidden beast` number, since 1 + 625 + 28 + 6 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (16252861) and next prime (16252871).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (34560) is a multiple of the sum of its prime divisors (135).

It is a self number, because there is not a number n which added to its sum of digits gives 16252866.

It is not an unprimeable number, because it can be changed into a prime (16252861) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 222606 + ... + 222678.

It is an arithmetic number, because the mean of its divisors is an integer number (355200).

Almost surely, 2^16252866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16252866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22732800).

16252866 is an abundant number, since it is smaller than the sum of its proper divisors (29212734).

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

16252866 is a wasteful number, since it uses less digits than its factorization.

16252866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 135 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 16252866 is about 4031.4843420259. The cubic root of 16252866 is about 253.3047409251.

The spelling of 16252866 in words is "sixteen million, two hundred fifty-two thousand, eight hundred sixty-six".