16225668 has 36 divisors (see below), whose sum is σ = 42019068. Its totient is φ = 5276160.

The previous prime is 16225621. The next prime is 16225681. The reversal of 16225668 is 86652261.

It can be written as a sum of positive squares in 2 ways, for example, as 1617984 + 14607684 = 1272^2 + 3822^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4021 + ... + 6972.

Almost surely, 2^16225668 is an apocalyptic number.

16225668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16225668 is an abundant number, since it is smaller than the sum of its proper divisors (25793400).

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

16225668 is a wasteful number, since it uses less digits than its factorization.

16225668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11044 (or 11039 counting only the distinct ones).

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

The square root of 16225668 is about 4028.1097303822. The cubic root of 16225668 is about 253.1633662924.

The spelling of 16225668 in words is "sixteen million, two hundred twenty-five thousand, six hundred sixty-eight".