18566671962196 has 24 divisors (see below), whose sum is σ = 33918549759360. Its totient is φ = 8875995656352.

The previous prime is 18566671962121. The next prime is 18566671962203. The reversal of 18566671962196 is 69126917666581.

It is a happy number.

It is a hoax number, since the sum of its digits (73) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42017896 + ... + 42457471.

It is an arithmetic number, because the mean of its divisors is an integer number (1413272906640).

Almost surely, 2^{18566671962196} is an apocalyptic number.

It is an amenable number.

18566671962196 is a deficient number, since it is larger than the sum of its proper divisors (15351877797164).

18566671962196 is a wasteful number, since it uses less digits than its factorization.

18566671962196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84477783 (or 84477781 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 73.

The spelling of 18566671962196 in words is "eighteen trillion, five hundred sixty-six billion, six hundred seventy-one million, nine hundred sixty-two thousand, one hundred ninety-six".