12166232390 has 16 divisors (see below), whose sum is σ = 23583773808. Its totient is φ = 4492147296.

The previous prime is 12166232371. The next prime is 12166232431. The reversal of 12166232390 is 9323266121.

It is a super-2 number, since 2×12166232390² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12166232390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46793072 + ... + 46793331.

It is an arithmetic number, because the mean of its divisors is an integer number (1473985863).

Almost surely, 2^12166232390 is an apocalyptic number.

12166232390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12166232390 is a deficient number, since it is larger than the sum of its proper divisors (11417541418).

12166232390 is a wasteful number, since it uses less digits than its factorization.

12166232390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93586423.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 12166232390 in words is "twelve billion, one hundred sixty-six million, two hundred thirty-two thousand, three hundred ninety".