66769296766 has 16 divisors (see below), whose sum is σ = 105438418560. Its totient is φ = 31623597720.

The previous prime is 66769296721. The next prime is 66769296791.

66769296766 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 66769296695 and 66769296704.

It is a congruent number.

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, 209095 + ... + 421021.

It is an arithmetic number, because the mean of its divisors is an integer number (6589901160).

Almost surely, 2^66769296766 is an apocalyptic number.

66769296766 is a deficient number, since it is larger than the sum of its proper divisors (38669121794).

66769296766 is a wasteful number, since it uses less digits than its factorization.

66769296766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220239.

The product of its digits is 370355328, while the sum is 70.

The spelling of 66769296766 in words is "sixty-six billion, seven hundred sixty-nine million, two hundred ninety-six thousand, seven hundred sixty-six".