20066066444 has 24 divisors (see below), whose sum is σ = 35966201040. Its totient is φ = 9790449984.

The previous prime is 20066066441. The next prime is 20066066473. The reversal of 20066066444 is 44466066002.

It is a junction number, because it is equal to n+sod(n) for n = 20066066398 and 20066066407.

It is not an unprimeable number, because it can be changed into a prime (20066066441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129302 + ... + 238434.

It is an arithmetic number, because the mean of its divisors is an integer number (1498591710).

Almost surely, 2^20066066444 is an apocalyptic number.

It is an amenable number.

20066066444 is a deficient number, since it is larger than the sum of its proper divisors (15900134596).

20066066444 is a wasteful number, since it uses less digits than its factorization.

20066066444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110249 (or 110247 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 20066066444 in words is "twenty billion, sixty-six million, sixty-six thousand, four hundred forty-four".