20066026240 has 72 divisors (see below), whose sum is σ = 51761708208. Its totient is φ = 7408988160.

The previous prime is 20066026237. The next prime is 20066026259. The reversal of 20066026240 is 4262066002.

It is a junction number, because it is equal to n+sod(n) for n = 20066026199 and 20066026208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586306 + ... + 619585.

It is an arithmetic number, because the mean of its divisors is an integer number (718912614).

Almost surely, 2^20066026240 is an apocalyptic number.

20066026240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20066026240 is an abundant number, since it is smaller than the sum of its proper divisors (31695681968).

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

20066026240 is a wasteful number, since it uses less digits than its factorization.

20066026240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205925 (or 1205911 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 20066026240 in words is "twenty billion, sixty-six million, twenty-six thousand, two hundred forty".