16275665 has 8 divisors (see below), whose sum is σ = 22320960. Its totient is φ = 11160432.

The previous prime is 16275643. The next prime is 16275691. The reversal of 16275665 is 56657261.

16275665 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16275665 - 2¹⁴ = 16259281 is a prime.

16275665 is strictly pandigital in base 8.

It is a Curzon number.

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, 232475 + ... + 232544.

It is an arithmetic number, because the mean of its divisors is an integer number (2790120).

Almost surely, 2^16275665 is an apocalyptic number.

It is an amenable number.

16275665 is a deficient number, since it is larger than the sum of its proper divisors (6045295).

16275665 is an equidigital number, since it uses as much as digits as its factorization.

16275665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465031.

The product of its digits is 75600, while the sum is 38.

The square root of 16275665 is about 4034.3109696700. The cubic root of 16275665 is about 253.4231281789.

The spelling of 16275665 in words is "sixteen million, two hundred seventy-five thousand, six hundred sixty-five".