2666319087 has 16 divisors (see below), whose sum is σ = 3636886880. Its totient is φ = 1737096192.

The previous prime is 2666319059. The next prime is 2666319107. The reversal of 2666319087 is 7809136662.

It is not a de Polignac number, because 2666319087 - 2¹⁵ = 2666286319 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666319037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31978 + ... + 79719.

It is an arithmetic number, because the mean of its divisors is an integer number (227305430).

Almost surely, 2^2666319087 is an apocalyptic number.

2666319087 is a deficient number, since it is larger than the sum of its proper divisors (970567793).

2666319087 is a wasteful number, since it uses less digits than its factorization.

2666319087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111882.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 2666319087 is about 51636.4124141095. The cubic root of 2666319087 is about 1386.6622965132.

The spelling of 2666319087 in words is "two billion, six hundred sixty-six million, three hundred nineteen thousand, eighty-seven".