66377277366 has 64 divisors (see below), whose sum is σ = 141721574400. Its totient is φ = 20666016000.

The previous prime is 66377277331. The next prime is 66377277403.

It is a happy number.

66377277366 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×66377277366³ (a number of 33 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2739786 + ... + 2763906.

It is an arithmetic number, because the mean of its divisors is an integer number (2214399600).

Almost surely, 2^66377277366 is an apocalyptic number.

66377277366 is an abundant number, since it is smaller than the sum of its proper divisors (75344297034).

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

66377277366 is a wasteful number, since it uses less digits than its factorization.

66377277366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24485.

The product of its digits is 56010528, while the sum is 60.

The spelling of 66377277366 in words is "sixty-six billion, three hundred seventy-seven million, two hundred seventy-seven thousand, three hundred sixty-six".