2732257666 has 8 divisors (see below), whose sum is σ = 4099829580. Its totient is φ = 1365647808.

The previous prime is 2732257657. The next prime is 2732257669. The reversal of 2732257666 is 6667522372.

It can be written as a sum of positive squares in 2 ways, for example, as 2732257441 + 225 = 52271^2 + 15^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2732257669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233371 + ... + 244798.

Almost surely, 2^2732257666 is an apocalyptic number.

2732257666 is a deficient number, since it is larger than the sum of its proper divisors (1367571914).

2732257666 is a wasteful number, since it uses less digits than its factorization.

2732257666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481028.

The product of its digits is 1270080, while the sum is 46.

The square root of 2732257666 is about 52271.0021522450. The cubic root of 2732257666 is about 1398.0001490650. Note that the first 3 decimals are identical.

The spelling of 2732257666 in words is "two billion, seven hundred thirty-two million, two hundred fifty-seven thousand, six hundred sixty-six".