12164081622 has 128 divisors (see below), whose sum is σ = 32248627200. Its totient is φ = 2964973440.

The previous prime is 12164081543. The next prime is 12164081623. The reversal of 12164081622 is 22618046121.

It is a happy number.

12164081622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12164081623) by changing a digit.

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, 552379 + ... + 573977.

It is an arithmetic number, because the mean of its divisors is an integer number (251942400).

Almost surely, 2^12164081622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12164081622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16124313600).

12164081622 is an abundant number, since it is smaller than the sum of its proper divisors (20084545578).

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

12164081622 is a wasteful number, since it uses less digits than its factorization.

12164081622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21698.

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 12164081622 in words is "twelve billion, one hundred sixty-four million, eighty-one thousand, six hundred twenty-two".