20620468666020 has 96 divisors (see below), whose sum is σ = 61139720678400. Its totient is φ = 5174817255424.

The previous prime is 20620468665977. The next prime is 20620468666067. The reversal of 20620468666020 is 2066686402602.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9277696 + ... + 11283464.

It is an arithmetic number, because the mean of its divisors is an integer number (636872090400).

Almost surely, 2^{20620468666020} is an apocalyptic number.

20620468666020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20620468666020 is an abundant number, since it is smaller than the sum of its proper divisors (40519252012380).

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

20620468666020 is a wasteful number, since it uses less digits than its factorization.

20620468666020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015877 (or 2015875 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 20620468666020 in words is "twenty trillion, six hundred twenty billion, four hundred sixty-eight million, six hundred sixty-six thousand, twenty".