663564311 has 2 divisors, whose sum is σ = 663564312. Its totient is φ = 663564310.

The previous prime is 663564299. The next prime is 663564337. The reversal of 663564311 is 113465366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 663564311 - 2¹⁰ = 663563287 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663564211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331782155 + 331782156.

It is an arithmetic number, because the mean of its divisors is an integer number (331782156).

Almost surely, 2^663564311 is an apocalyptic number.

663564311 is a deficient number, since it is larger than the sum of its proper divisors (1).

663564311 is an equidigital number, since it uses as much as digits as its factorization.

663564311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The square root of 663564311 is about 25759.7420600440. The cubic root of 663564311 is about 872.2232786647.

The spelling of 663564311 in words is "six hundred sixty-three million, five hundred sixty-four thousand, three hundred eleven".