22066412047 has 4 divisors (see below), whose sum is σ = 22136912080. Its totient is φ = 21995912016.

The previous prime is 22066412021. The next prime is 22066412141. The reversal of 22066412047 is 74021466022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22066412047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22066412447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35249547 + ... + 35250172.

It is an arithmetic number, because the mean of its divisors is an integer number (5534228020).

Almost surely, 2^22066412047 is an apocalyptic number.

22066412047 is a deficient number, since it is larger than the sum of its proper divisors (70500033).

22066412047 is an equidigital number, since it uses as much as digits as its factorization.

22066412047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70500032.

The product of its (nonzero) digits is 32256, while the sum is 34.

Adding to 22066412047 its reverse (74021466022), we get a palindrome (96087878069).

The spelling of 22066412047 in words is "twenty-two billion, sixty-six million, four hundred twelve thousand, forty-seven".