1984663166 has 8 divisors (see below), whose sum is σ = 2977218504. Its totient is φ = 992257000.

The previous prime is 1984663157. The next prime is 1984663189. The reversal of 1984663166 is 6613664891.

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

It is a congruent number.

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, 6041 + ... + 63291.

It is an arithmetic number, because the mean of its divisors is an integer number (372152313).

Almost surely, 2^1984663166 is an apocalyptic number.

1984663166 is a deficient number, since it is larger than the sum of its proper divisors (992555338).

1984663166 is a wasteful number, since it uses less digits than its factorization.

1984663166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74586.

The product of its digits is 1119744, while the sum is 50.

The square root of 1984663166 is about 44549.5585387779. The cubic root of 1984663166 is about 1256.6922491804.

The spelling of 1984663166 in words is "one billion, nine hundred eighty-four million, six hundred sixty-three thousand, one hundred sixty-six".