12166655163 has 16 divisors (see below), whose sum is σ = 17474446080. Its totient is φ = 7485296544.

The previous prime is 12166655113. The next prime is 12166655197. The reversal of 12166655163 is 36155666121.

It is not a de Polignac number, because 12166655163 - 2¹⁴ = 12166638779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12166655113) 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, 127570 + ... + 201512.

It is an arithmetic number, because the mean of its divisors is an integer number (1092152880).

Almost surely, 2^12166655163 is an apocalyptic number.

12166655163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12166655163 is a deficient number, since it is larger than the sum of its proper divisors (5307790917).

12166655163 is a wasteful number, since it uses less digits than its factorization.

12166655163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78178.

The product of its digits is 194400, while the sum is 42.

The spelling of 12166655163 in words is "twelve billion, one hundred sixty-six million, six hundred fifty-five thousand, one hundred sixty-three".