20026206064 has 10 divisors (see below), whose sum is σ = 38800774280. Its totient is φ = 10013103024.

The previous prime is 20026206047. The next prime is 20026206071. The reversal of 20026206064 is 46060262002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625818924 + ... + 625818955.

It is an arithmetic number, because the mean of its divisors is an integer number (3880077428).

Almost surely, 2^20026206064 is an apocalyptic number.

It is an amenable number.

20026206064 is a deficient number, since it is larger than the sum of its proper divisors (18774568216).

20026206064 is a wasteful number, since it uses less digits than its factorization.

20026206064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251637887 (or 1251637881 counting only the distinct ones).

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

Adding to 20026206064 its reverse (46060262002), we get a palindrome (66086468066).

The spelling of 20026206064 in words is "twenty billion, twenty-six million, two hundred six thousand, sixty-four".