10663512109 has 2 divisors, whose sum is σ = 10663512110. Its totient is φ = 10663512108.

The previous prime is 10663512071. The next prime is 10663512131. The reversal of 10663512109 is 90121536601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10627548100 + 35964009 = 103090^2 + 5997^2 .

It is a cyclic number.

It is not a de Polignac number, because 10663512109 - 2¹⁷ = 10663381037 is a prime.

It is a super-2 number, since 2×10663512109² (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 (10663512169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5331756054 + 5331756055.

It is an arithmetic number, because the mean of its divisors is an integer number (5331756055).

Almost surely, 2^10663512109 is an apocalyptic number.

It is an amenable number.

10663512109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10663512109 is an equidigital number, since it uses as much as digits as its factorization.

10663512109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 10663512109 in words is "ten billion, six hundred sixty-three million, five hundred twelve thousand, one hundred nine".