20666026044044 has 6 divisors (see below), whose sum is σ = 36165545577084. Its totient is φ = 10333013022020.

The previous prime is 20666026044031. The next prime is 20666026044119. The reversal of 20666026044044 is 44044062066602.

It is a junction number, because it is equal to n+sod(n) for n = 20666026043986 and 20666026044004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583253255502 + ... + 2583253255509.

It is an arithmetic number, because the mean of its divisors is an integer number (6027590929514).

Almost surely, 2^{20666026044044} is an apocalyptic number.

It is an amenable number.

20666026044044 is a deficient number, since it is larger than the sum of its proper divisors (15499519533040).

20666026044044 is a wasteful number, since it uses less digits than its factorization.

20666026044044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5166506511015 (or 5166506511013 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 44.

The spelling of 20666026044044 in words is "twenty trillion, six hundred sixty-six billion, twenty-six million, forty-four thousand, forty-four".