20055021372020 has 12 divisors (see below), whose sum is σ = 42115544881284. Its totient is φ = 8022008548800.

The previous prime is 20055021371923. The next prime is 20055021372059. The reversal of 20055021372020 is 2027312055002.

It can be written as a sum of positive squares in 2 ways, for example, as 11010013241956 + 9045008130064 = 3318134^2 + 3007492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501375534281 + ... + 501375534320.

It is an arithmetic number, because the mean of its divisors is an integer number (3509628740107).

Almost surely, 2^{20055021372020} is an apocalyptic number.

20055021372020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20055021372020 is an abundant number, since it is smaller than the sum of its proper divisors (22060523509264).

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

20055021372020 is a wasteful number, since it uses less digits than its factorization.

20055021372020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002751068610 (or 1002751068608 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The spelling of 20055021372020 in words is "twenty trillion, fifty-five billion, twenty-one million, three hundred seventy-two thousand, twenty".