632565916009 has 2 divisors, whose sum is σ = 632565916010. Its totient is φ = 632565916008.

The previous prime is 632565916001. The next prime is 632565916079. The reversal of 632565916009 is 900619565236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 604475150400 + 28090765609 = 777480^2 + 167603^2 .

It is a cyclic number.

It is not a de Polignac number, because 632565916009 - 2³ = 632565916001 is a prime.

It is not a weakly prime, because it can be changed into another prime (632565916001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316282958004 + 316282958005.

It is an arithmetic number, because the mean of its divisors is an integer number (316282958005).

Almost surely, 2^632565916009 is an apocalyptic number.

It is an amenable number.

632565916009 is a deficient number, since it is larger than the sum of its proper divisors (1).

632565916009 is an equidigital number, since it uses as much as digits as its factorization.

632565916009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2624400, while the sum is 52.

The spelling of 632565916009 in words is "six hundred thirty-two billion, five hundred sixty-five million, nine hundred sixteen thousand, nine".