20666222422 has 8 divisors (see below), whose sum is σ = 31000723416. Its totient is φ = 10332647952.

The previous prime is 20666222417. The next prime is 20666222429. The reversal of 20666222422 is 22422266602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20666222429) 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, 172888 + ... + 266875.

It is an arithmetic number, because the mean of its divisors is an integer number (3875090427).

Almost surely, 2^20666222422 is an apocalyptic number.

20666222422 is a deficient number, since it is larger than the sum of its proper divisors (10334500994).

20666222422 is a wasteful number, since it uses less digits than its factorization.

20666222422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463262.

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 20666222422 in words is "twenty billion, six hundred sixty-six million, two hundred twenty-two thousand, four hundred twenty-two".