2132654666 has 8 divisors (see below), whose sum is σ = 3199180644. Its totient is φ = 1066261120.

The previous prime is 2132654659. The next prime is 2132654681. The reversal of 2132654666 is 6664562312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1649578225 + 483076441 = 40615^2 + 21979^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 36026 + ... + 74586.

Almost surely, 2^2132654666 is an apocalyptic number.

2132654666 is a deficient number, since it is larger than the sum of its proper divisors (1066525978).

2132654666 is a wasteful number, since it uses less digits than its factorization.

2132654666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66216.

The product of its digits is 311040, while the sum is 41.

The square root of 2132654666 is about 46180.6741613849. The cubic root of 2132654666 is about 1287.1826553905.

The spelling of 2132654666 in words is "two billion, one hundred thirty-two million, six hundred fifty-four thousand, six hundred sixty-six".