20466446660808 has 32 divisors (see below), whose sum is σ = 51166262347200. Its totient is φ = 6822129460928.

The previous prime is 20466446660791. The next prime is 20466446660833. The reversal of 20466446660808 is 80806664466402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9219910 + ... + 11222282.

It is an arithmetic number, because the mean of its divisors is an integer number (1598945698350).

Almost surely, 2^{20466446660808} is an apocalyptic number.

It is an amenable number.

20466446660808 is an abundant number, since it is smaller than the sum of its proper divisors (30699815686392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20466446660808 is a wasteful number, since it uses less digits than its factorization.

20466446660808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428261 (or 2428257 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 60.

The spelling of 20466446660808 in words is "twenty trillion, four hundred sixty-six billion, four hundred forty-six million, six hundred sixty thousand, eight hundred eight".