20266646006220 has 24 divisors (see below), whose sum is σ = 56746608817584. Its totient is φ = 5404438934976.

The previous prime is 20266646006213. The next prime is 20266646006239. The reversal of 20266646006220 is 2260064666202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168888716659 + ... + 168888716778.

It is an arithmetic number, because the mean of its divisors is an integer number (2364442034066).

Almost surely, 2^{20266646006220} is an apocalyptic number.

20266646006220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20266646006220 is an abundant number, since it is smaller than the sum of its proper divisors (36479962811364).

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

20266646006220 is a wasteful number, since it uses less digits than its factorization.

20266646006220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337777433449 (or 337777433447 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 20266646006220 in words is "twenty trillion, two hundred sixty-six billion, six hundred forty-six million, six thousand, two hundred twenty".