20071065986420 has 24 divisors (see below), whose sum is σ = 42158772627048. Its totient is φ = 8026610384000.

The previous prime is 20071065986353. The next prime is 20071065986441. The reversal of 20071065986420 is 2468956017002.

It can be written as a sum of positive squares in 4 ways, for example, as 4891829215504 + 15179236770916 = 2211748^2 + 3896054^2 .

It is a congruent number.

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, 113410031 + ... + 113586870.

It is an arithmetic number, because the mean of its divisors is an integer number (1756615526127).

Almost surely, 2^{20071065986420} is an apocalyptic number.

20071065986420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20071065986420 is an abundant number, since it is smaller than the sum of its proper divisors (22087706640628).

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

20071065986420 is a wasteful number, since it uses less digits than its factorization.

20071065986420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227001331 (or 227001329 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 20071065986420 in words is "twenty trillion, seventy-one billion, sixty-five million, nine hundred eighty-six thousand, four hundred twenty".