20143422566 has 8 divisors (see below), whose sum is σ = 30666106200. Its totient is φ = 9921387168.

The previous prime is 20143422557. The next prime is 20143422569. The reversal of 20143422566 is 66522434102.

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 (20143422569) 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, 75161891 + ... + 75162158.

It is an arithmetic number, because the mean of its divisors is an integer number (3833263275).

Almost surely, 2^20143422566 is an apocalyptic number.

20143422566 is a deficient number, since it is larger than the sum of its proper divisors (10522683634).

20143422566 is a wasteful number, since it uses less digits than its factorization.

20143422566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150324118.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 20143422566 its reverse (66522434102), we get a palindrome (86665856668).

The spelling of 20143422566 in words is "twenty billion, one hundred forty-three million, four hundred twenty-two thousand, five hundred sixty-six".