275607666 has 24 divisors (see below), whose sum is σ = 623113920. Its totient is φ = 87874776.

The previous prime is 275607659. The next prime is 275607697. The reversal of 275607666 is 666706572.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 332446 + ... + 333273.

It is an arithmetic number, because the mean of its divisors is an integer number (25963080).

Almost surely, 2^275607666 is an apocalyptic number.

275607666 is an abundant number, since it is smaller than the sum of its proper divisors (347506254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275607666 is a wasteful number, since it uses less digits than its factorization.

275607666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665750 (or 665747 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 275607666 is about 16601.4356608096. The cubic root of 275607666 is about 650.7743560257.

The spelling of 275607666 in words is "two hundred seventy-five million, six hundred seven thousand, six hundred sixty-six".