12164192638 has 64 divisors (see below), whose sum is σ = 20360309760. Its totient is φ = 5416025472.

The previous prime is 12164192633. The next prime is 12164192639. The reversal of 12164192638 is 83629146121.

It is a junction number, because it is equal to n+sod(n) for n = 12164192594 and 12164192603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12164192633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21605745 + ... + 21606307.

It is an arithmetic number, because the mean of its divisors is an integer number (318129840).

Almost surely, 2^12164192638 is an apocalyptic number.

12164192638 is a deficient number, since it is larger than the sum of its proper divisors (8196117122).

12164192638 is a wasteful number, since it uses less digits than its factorization.

12164192638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881.

The product of its digits is 124416, while the sum is 43.

The spelling of 12164192638 in words is "twelve billion, one hundred sixty-four million, one hundred ninety-two thousand, six hundred thirty-eight".