1171573480666 has 8 divisors (see below), whose sum is σ = 1860734351700. Its totient is φ = 551328696768.

The previous prime is 1171573480643. The next prime is 1171573480709. The reversal of 1171573480666 is 6660843751711.

It can be written as a sum of positive squares in 2 ways, for example, as 1114124581441 + 57448899225 = 1055521^2 + 239685^2 .

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, 17229021741 + ... + 17229021808.

Almost surely, 2^{1171573480666} is an apocalyptic number.

1171573480666 is a deficient number, since it is larger than the sum of its proper divisors (689160871034).

1171573480666 is a wasteful number, since it uses less digits than its factorization.

1171573480666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34458043568.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 1171573480666 in words is "one trillion, one hundred seventy-one billion, five hundred seventy-three million, four hundred eighty thousand, six hundred sixty-six".