2666831164 has 12 divisors (see below), whose sum is σ = 4667569704. Its totient is φ = 1333239824.

The previous prime is 2666831161. The next prime is 2666831171. The reversal of 2666831164 is 4611386662.

It is a happy number.

It is a super-2 number, since 2×2666831164² = 14223976914563189792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2666831164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666831161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6199 + ... + 73294.

It is an arithmetic number, because the mean of its divisors is an integer number (388964142).

Almost surely, 2^2666831164 is an apocalyptic number.

It is an amenable number.

2666831164 is a deficient number, since it is larger than the sum of its proper divisors (2000738540).

2666831164 is a wasteful number, since it uses less digits than its factorization.

2666831164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87884 (or 87882 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 2666831164 is about 51641.3706634516. The cubic root of 2666831164 is about 1386.7510621351.

The spelling of 2666831164 in words is "two billion, six hundred sixty-six million, eight hundred thirty-one thousand, one hundred sixty-four".