244665663 has 16 divisors (see below), whose sum is σ = 368150400. Its totient is φ = 143168480.

The previous prime is 244665623. The next prime is 244665667. The reversal of 244665663 is 366566442.

It is a cyclic number.

It is not a de Polignac number, because 244665663 - 2¹² = 244661567 is a prime.

It is a super-2 number, since 2×244665663² = 119722573302459138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244665667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126873 + ... + 128786.

It is an arithmetic number, because the mean of its divisors is an integer number (23009400).

Almost surely, 2^244665663 is an apocalyptic number.

244665663 is a deficient number, since it is larger than the sum of its proper divisors (123484737).

244665663 is a wasteful number, since it uses less digits than its factorization.

244665663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255702.

The product of its digits is 622080, while the sum is 42.

The square root of 244665663 is about 15641.7921927124. The cubic root of 244665663 is about 625.4477116370.

The spelling of 244665663 in words is "two hundred forty-four million, six hundred sixty-five thousand, six hundred sixty-three".