12163891090 has 128 divisors (see below), whose sum is σ = 25119424512. Its totient is φ = 4207230720.

The previous prime is 12163891049. The next prime is 12163891123. The reversal of 12163891090 is 9019836121.

12163891090 = 11453² + 11454² + ... + 11544².

12163891090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39112035 + ... + 39112345.

It is an arithmetic number, because the mean of its divisors is an integer number (196245504).

Almost surely, 2^12163891090 is an apocalyptic number.

12163891090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12163891090 is an abundant number, since it is smaller than the sum of its proper divisors (12955533422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12163891090 is a wasteful number, since it uses less digits than its factorization.

12163891090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 12163891090 in words is "twelve billion, one hundred sixty-three million, eight hundred ninety-one thousand, ninety".