15663116271 has 16 divisors (see below), whose sum is σ = 23267455488. Its totient is φ = 9290822400.

The previous prime is 15663116269. The next prime is 15663116303. The reversal of 15663116271 is 17261136651.

It is not a de Polignac number, because 15663116271 - 2¹ = 15663116269 is a prime.

It is a super-2 number, since 2×15663116271² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15663116201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5047810 + ... + 5050911.

It is an arithmetic number, because the mean of its divisors is an integer number (1454215968).

Almost surely, 2^15663116271 is an apocalyptic number.

15663116271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15663116271 is a deficient number, since it is larger than the sum of its proper divisors (7604339217).

15663116271 is a wasteful number, since it uses less digits than its factorization.

15663116271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10098782.

The product of its digits is 45360, while the sum is 39.

The spelling of 15663116271 in words is "fifteen billion, six hundred sixty-three million, one hundred sixteen thousand, two hundred seventy-one".