15663106253 has 2 divisors, whose sum is σ = 15663106254. Its totient is φ = 15663106252.

The previous prime is 15663106211. The next prime is 15663106379. The reversal of 15663106253 is 35260136651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14919889609 + 743216644 = 122147^2 + 27262^2 .

It is a cyclic number.

It is not a de Polignac number, because 15663106253 - 2²⁴ = 15646329037 is a prime.

It is a super-3 number, since 3×15663106253³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15663106453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7831553126 + 7831553127.

It is an arithmetic number, because the mean of its divisors is an integer number (7831553127).

Almost surely, 2^15663106253 is an apocalyptic number.

It is an amenable number.

15663106253 is a deficient number, since it is larger than the sum of its proper divisors (1).

15663106253 is an equidigital number, since it uses as much as digits as its factorization.

15663106253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 15663106253 in words is "fifteen billion, six hundred sixty-three million, one hundred six thousand, two hundred fifty-three".