10663253509 has 2 divisors, whose sum is σ = 10663253510. Its totient is φ = 10663253508.

The previous prime is 10663253459. The next prime is 10663253521. The reversal of 10663253509 is 90535236601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6708101409 + 3955152100 = 81903^2 + 62890^2 .

It is a cyclic number.

It is not a de Polignac number, because 10663253509 - 2²⁵ = 10629699077 is a prime.

It is a super-2 number, since 2×10663253509² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10663253609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5331626754 + 5331626755.

It is an arithmetic number, because the mean of its divisors is an integer number (5331626755).

Almost surely, 2^10663253509 is an apocalyptic number.

It is an amenable number.

10663253509 is a deficient number, since it is larger than the sum of its proper divisors (1).

10663253509 is an equidigital number, since it uses as much as digits as its factorization.

10663253509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 40.

The spelling of 10663253509 in words is "ten billion, six hundred sixty-three million, two hundred fifty-three thousand, five hundred nine".