275404666 has 8 divisors (see below), whose sum is σ = 413450100. Its totient is φ = 137587968.

The previous prime is 275404583. The next prime is 275404681. The reversal of 275404666 is 666404572.

It can be written as a sum of positive squares in 2 ways, for example, as 274730625 + 674041 = 16575^2 + 821^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54141 + ... + 59008.

Almost surely, 2^275404666 is an apocalyptic number.

275404666 is a deficient number, since it is larger than the sum of its proper divisors (138045434).

275404666 is a wasteful number, since it uses less digits than its factorization.

275404666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114368.

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 275404666 is about 16595.3206055201. The cubic root of 275404666 is about 650.6145399071.

The spelling of 275404666 in words is "two hundred seventy-five million, four hundred four thousand, six hundred sixty-six".