12162188468 has 6 divisors (see below), whose sum is σ = 21283829826. Its totient is φ = 6081094232.

The previous prime is 12162188419. The next prime is 12162188471. The reversal of 12162188468 is 86488126121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12074053924 + 88134544 = 109882^2 + 9388^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1520273555 + ... + 1520273562.

It is an arithmetic number, because the mean of its divisors is an integer number (3547304971).

Almost surely, 2^12162188468 is an apocalyptic number.

It is an amenable number.

12162188468 is a deficient number, since it is larger than the sum of its proper divisors (9121641358).

12162188468 is a wasteful number, since it uses less digits than its factorization.

12162188468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040547121 (or 3040547119 counting only the distinct ones).

The product of its digits is 294912, while the sum is 47.

The spelling of 12162188468 in words is "twelve billion, one hundred sixty-two million, one hundred eighty-eight thousand, four hundred sixty-eight".