66748484766 has 16 divisors (see below), whose sum is σ = 133619120784. Its totient is φ = 22229136384.

The previous prime is 66748484753. The next prime is 66748484813.

66748484766 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 66748484697 and 66748484706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5082531 + ... + 5095646.

It is an arithmetic number, because the mean of its divisors is an integer number (8351195049).

Almost surely, 2^66748484766 is an apocalyptic number.

66748484766 is an abundant number, since it is smaller than the sum of its proper divisors (66870636018).

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

66748484766 is a wasteful number, since it uses less digits than its factorization.

66748484766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10179275.

The product of its digits is 260112384, while the sum is 66.

The spelling of 66748484766 in words is "sixty-six billion, seven hundred forty-eight million, four hundred eighty-four thousand, seven hundred sixty-six".