450231665 has 16 divisors (see below), whose sum is σ = 589209600. Its totient is φ = 328266432.

The previous prime is 450231623. The next prime is 450231671. The reversal of 450231665 is 566132054.

It is not a de Polignac number, because 450231665 - 2²⁴ = 433454449 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38705 + ... + 48974.

It is an arithmetic number, because the mean of its divisors is an integer number (36825600).

Almost surely, 2^450231665 is an apocalyptic number.

It is an amenable number.

450231665 is a deficient number, since it is larger than the sum of its proper divisors (138977935).

450231665 is a wasteful number, since it uses less digits than its factorization.

450231665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87776.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 450231665 is about 21218.6631294245. The cubic root of 450231665 is about 766.4409113706.

The spelling of 450231665 in words is "four hundred fifty million, two hundred thirty-one thousand, six hundred sixty-five".