20066246420 has 24 divisors (see below), whose sum is σ = 45969946848. Its totient is φ = 7296816800.

The previous prime is 20066246381. The next prime is 20066246423. The reversal of 20066246420 is 2464266002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20066246423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45604886 + ... + 45605325.

It is an arithmetic number, because the mean of its divisors is an integer number (1915414452).

Almost surely, 2^20066246420 is an apocalyptic number.

20066246420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20066246420 is an abundant number, since it is smaller than the sum of its proper divisors (25903700428).

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

20066246420 is a wasteful number, since it uses less digits than its factorization.

20066246420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91210231 (or 91210229 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

It can be divided in two parts, 2006 and 6246420, that added together give a palindrome (6248426).

The spelling of 20066246420 in words is "twenty billion, sixty-six million, two hundred forty-six thousand, four hundred twenty".