663299564 has 6 divisors (see below), whose sum is σ = 1160774244. Its totient is φ = 331649780.

The previous prime is 663299509. The next prime is 663299569. The reversal of 663299564 is 465992366.

663299564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (663299569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82912442 + ... + 82912449.

It is an arithmetic number, because the mean of its divisors is an integer number (193462374).

Almost surely, 2^663299564 is an apocalyptic number.

It is an amenable number.

663299564 is a deficient number, since it is larger than the sum of its proper divisors (497474680).

663299564 is a wasteful number, since it uses less digits than its factorization.

663299564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165824895 (or 165824893 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 50.

The square root of 663299564 is about 25754.6027730967. The cubic root of 663299564 is about 872.1072641806.

The spelling of 663299564 in words is "six hundred sixty-three million, two hundred ninety-nine thousand, five hundred sixty-four".