10253938661 has 2 divisors, whose sum is σ = 10253938662. Its totient is φ = 10253938660.

The previous prime is 10253938657. The next prime is 10253938699. The reversal of 10253938661 is 16683935201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10194940900 + 58997761 = 100970^2 + 7681^2 .

It is a cyclic number.

It is not a de Polignac number, because 10253938661 - 2² = 10253938657 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10253938561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5126969330 + 5126969331.

It is an arithmetic number, because the mean of its divisors is an integer number (5126969331).

Almost surely, 2^10253938661 is an apocalyptic number.

It is an amenable number.

10253938661 is a deficient number, since it is larger than the sum of its proper divisors (1).

10253938661 is an equidigital number, since it uses as much as digits as its factorization.

10253938661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 10253938661 in words is "ten billion, two hundred fifty-three million, nine hundred thirty-eight thousand, six hundred sixty-one".