2640217366 has 16 divisors (see below), whose sum is σ = 4075016688. Its totient is φ = 1282372000.

The previous prime is 2640217309. The next prime is 2640217379. The reversal of 2640217366 is 6637120462.

2640217366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112600 + ... + 134011.

It is an arithmetic number, because the mean of its divisors is an integer number (254688543).

Almost surely, 2^2640217366 is an apocalyptic number.

2640217366 is a deficient number, since it is larger than the sum of its proper divisors (1434799322).

2640217366 is a wasteful number, since it uses less digits than its factorization.

2640217366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246767.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 2640217366 is about 51383.0455111411. The cubic root of 2640217366 is about 1382.1225765536.

The spelling of 2640217366 in words is "two billion, six hundred forty million, two hundred seventeen thousand, three hundred sixty-six".