22166311672 has 32 divisors (see below), whose sum is σ = 42912299520. Its totient is φ = 10723194720.

The previous prime is 22166311667. The next prime is 22166311697. The reversal of 22166311672 is 27611366122.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1586943 + ... + 1600849.

It is an arithmetic number, because the mean of its divisors is an integer number (1341009360).

Almost surely, 2^22166311672 is an apocalyptic number.

It is an amenable number.

22166311672 is a deficient number, since it is larger than the sum of its proper divisors (20745987848).

22166311672 is a wasteful number, since it uses less digits than its factorization.

22166311672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20371 (or 20367 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

Adding to 22166311672 its reverse (27611366122), we get a palindrome (49777677794).

The spelling of 22166311672 in words is "twenty-two billion, one hundred sixty-six million, three hundred eleven thousand, six hundred seventy-two".