320087449666 has 8 divisors (see below), whose sum is σ = 480140069004. Its totient is φ = 160040760000.

The previous prime is 320087449609. The next prime is 320087449691. The reversal of 320087449666 is 666944780023.

It can be written as a sum of positive squares in 2 ways, for example, as 236459485441 + 83627964225 = 486271^2 + 289185^2 .

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, 1344915 + ... + 1564918.

Almost surely, 2^320087449666 is an apocalyptic number.

320087449666 is a deficient number, since it is larger than the sum of its proper divisors (160052619338).

320087449666 is a wasteful number, since it uses less digits than its factorization.

320087449666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964836.

The product of its (nonzero) digits is 10450944, while the sum is 55.

The spelling of 320087449666 in words is "three hundred twenty billion, eighty-seven million, four hundred forty-nine thousand, six hundred sixty-six".