22186666047 has 24 divisors (see below), whose sum is σ = 37059049776. Its totient is φ = 11702855808.

The previous prime is 22186666043. The next prime is 22186666049. The reversal of 22186666047 is 74066668122.

It is not a de Polignac number, because 22186666047 - 2² = 22186666043 is a prime.

It is a super-2 number, since 2×22186666047² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22186665987 and 22186666005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22186666043) 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 23 ways as a sum of consecutive naturals, for example, 5803078 + ... + 5806899.

It is an arithmetic number, because the mean of its divisors is an integer number (1544127074).

Almost surely, 2^22186666047 is an apocalyptic number.

22186666047 is a deficient number, since it is larger than the sum of its proper divisors (14872383729).

22186666047 is a wasteful number, since it uses less digits than its factorization.

22186666047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11610007 (or 11610000 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 22186666047 in words is "twenty-two billion, one hundred eighty-six million, six hundred sixty-six thousand, forty-seven".