2666436664 has 16 divisors (see below), whose sum is σ = 5000123520. Its totient is φ = 1333070400.

The previous prime is 2666436637. The next prime is 2666436673. The reversal of 2666436664 is 4666346662.

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 3 ways as a sum of consecutive naturals, for example, 113692 + ... + 135124.

It is an arithmetic number, because the mean of its divisors is an integer number (312507720).

Almost surely, 2^2666436664 is an apocalyptic number.

It is an amenable number.

2666436664 is a deficient number, since it is larger than the sum of its proper divisors (2333686856).

2666436664 is a wasteful number, since it uses less digits than its factorization.

2666436664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36990 (or 36986 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 49.

The square root of 2666436664 is about 51637.5509101661. The cubic root of 2666436664 is about 1386.6826788195.

The spelling of 2666436664 in words is "two billion, six hundred sixty-six million, four hundred thirty-six thousand, six hundred sixty-four".