2668087585 has 16 divisors (see below), whose sum is σ = 3253836240. Its totient is φ = 2099865600.

The previous prime is 2668087579. The next prime is 2668087651. The reversal of 2668087585 is 5857808662.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1064325376 + 1603762209 = 32624^2 + 40047^2 .

It is not a de Polignac number, because 2668087585 - 2³ = 2668087577 is a prime.

It is a super-2 number, since 2×2668087585² = 14237382722462264450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137251 + ... + 155479.

It is an arithmetic number, because the mean of its divisors is an integer number (203364765).

Almost surely, 2^2668087585 is an apocalyptic number.

It is an amenable number.

2668087585 is a deficient number, since it is larger than the sum of its proper divisors (585748655).

2668087585 is a wasteful number, since it uses less digits than its factorization.

2668087585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18708.

The product of its (nonzero) digits is 6451200, while the sum is 55.

The square root of 2668087585 is about 51653.5340998077. The cubic root of 2668087585 is about 1386.9688074038.

The spelling of 2668087585 in words is "two billion, six hundred sixty-eight million, eighty-seven thousand, five hundred eighty-five".