20066022868 has 24 divisors (see below), whose sum is σ = 35787915072. Its totient is φ = 9842725824.

The previous prime is 20066022863. The next prime is 20066022869. The reversal of 20066022868 is 86822066002.

It is a self number, because there is not a number n which added to its sum of digits gives 20066022868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20066022863) 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, 183505 + ... + 271672.

It is an arithmetic number, because the mean of its divisors is an integer number (1491163128).

Almost surely, 2^20066022868 is an apocalyptic number.

It is an amenable number.

20066022868 is a deficient number, since it is larger than the sum of its proper divisors (15721892204).

20066022868 is a wasteful number, since it uses less digits than its factorization.

20066022868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455391 (or 455389 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 20066022868 in words is "twenty billion, sixty-six million, twenty-two thousand, eight hundred sixty-eight".