20066244771 has 8 divisors (see below), whose sum is σ = 26959230144. Its totient is φ = 13275377960.

The previous prime is 20066244769. The next prime is 20066244839. The reversal of 20066244771 is 17744266002.

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

It is a cyclic number.

It is not a de Polignac number, because 20066244771 - 2¹ = 20066244769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20066244271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25529181 + ... + 25529966.

It is an arithmetic number, because the mean of its divisors is an integer number (3369903768).

Almost surely, 2^20066244771 is an apocalyptic number.

20066244771 is a deficient number, since it is larger than the sum of its proper divisors (6892985373).

20066244771 is a wasteful number, since it uses less digits than its factorization.

20066244771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51059281.

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 20066244771 in words is "twenty billion, sixty-six million, two hundred forty-four thousand, seven hundred seventy-one".