20066620050396 has 72 divisors (see below), whose sum is σ = 51599004912000. Its totient is φ = 6573549660960.

The previous prime is 20066620050307. The next prime is 20066620050403. The reversal of 20066620050396 is 69305002666002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5758705 + ... + 8561303.

It is an arithmetic number, because the mean of its divisors is an integer number (716652846000).

Almost surely, 2^{20066620050396} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20066620050396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25799502456000).

20066620050396 is an abundant number, since it is smaller than the sum of its proper divisors (31532384861604).

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

20066620050396 is a wasteful number, since it uses less digits than its factorization.

20066620050396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806039 (or 2806034 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 20066620050396 in words is "twenty trillion, sixty-six billion, six hundred twenty million, fifty thousand, three hundred ninety-six".