2640166275 has 12 divisors (see below), whose sum is σ = 4365075032. Its totient is φ = 1408088640.

The previous prime is 2640166267. The next prime is 2640166301. The reversal of 2640166275 is 5726610462.

It is not a de Polignac number, because 2640166275 - 2³ = 2640166267 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 17601034 + ... + 17601183.

Almost surely, 2^2640166275 is an apocalyptic number.

2640166275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2640166275 is a deficient number, since it is larger than the sum of its proper divisors (1724908757).

2640166275 is a wasteful number, since it uses less digits than its factorization.

2640166275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35202230 (or 35202225 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 2640166275 is about 51382.5483505830. The cubic root of 2640166275 is about 1382.1136613179.

The spelling of 2640166275 in words is "two billion, six hundred forty million, one hundred sixty-six thousand, two hundred seventy-five".