2666670886 has 32 divisors (see below), whose sum is σ = 4531874688. Its totient is φ = 1166235840.

The previous prime is 2666670869. The next prime is 2666670889. The reversal of 2666670886 is 6880766662.

It is a super-2 number, since 2×2666670886² = 14222267228480049992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666670889) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 42346 + ... + 84418.

It is an arithmetic number, because the mean of its divisors is an integer number (141621084).

Almost surely, 2^2666670886 is an apocalyptic number.

2666670886 is a deficient number, since it is larger than the sum of its proper divisors (1865203802).

2666670886 is a wasteful number, since it uses less digits than its factorization.

2666670886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42196.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The square root of 2666670886 is about 51639.8188029354. The cubic root of 2666670886 is about 1386.7232800815.

The spelling of 2666670886 in words is "two billion, six hundred sixty-six million, six hundred seventy thousand, eight hundred eighty-six".