22186872243766 has 4 divisors (see below), whose sum is σ = 33280308365652. Its totient is φ = 11093436121882.

The previous prime is 22186872243761. The next prime is 22186872243797. The reversal of 22186872243766 is 66734227868122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×22186872243766² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22186872243698 and 22186872243707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22186872243761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5546718060940 + ... + 5546718060943.

It is an arithmetic number, because the mean of its divisors is an integer number (8320077091413).

Almost surely, 2^{22186872243766} is an apocalyptic number.

22186872243766 is a deficient number, since it is larger than the sum of its proper divisors (11093436121886).

22186872243766 is a wasteful number, since it uses less digits than its factorization.

22186872243766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11093436121885.

The product of its digits is 130056192, while the sum is 64.

The spelling of 22186872243766 in words is "twenty-two trillion, one hundred eighty-six billion, eight hundred seventy-two million, two hundred forty-three thousand, seven hundred sixty-six".