66202020266 has 16 divisors (see below), whose sum is σ = 102395682144. Its totient is φ = 32085175824.

The previous prime is 66202020259. The next prime is 66202020293.

66202020266 is nontrivially palindromic in base 10.

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, 3753536 + ... + 3771131.

It is an arithmetic number, because the mean of its divisors is an integer number (6399730134).

Almost surely, 2^66202020266 is an apocalyptic number.

66202020266 is a deficient number, since it is larger than the sum of its proper divisors (36193661878).

66202020266 is a wasteful number, since it uses less digits than its factorization.

66202020266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524805.

The product of its (nonzero) digits is 20736, while the sum is 32.

It can be divided in two parts, 662020 and 20266, that added together give a palindrome (682286).

The spelling of 66202020266 in words is "sixty-six billion, two hundred two million, twenty thousand, two hundred sixty-six".