663792166 has 16 divisors (see below), whose sum is σ = 1057150656. Its totient is φ = 311515776.

The previous prime is 663792133. The next prime is 663792187. The reversal of 663792166 is 661297366.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 14121 + ... + 39076.

It is an arithmetic number, because the mean of its divisors is an integer number (66071916).

Almost surely, 2^663792166 is an apocalyptic number.

663792166 is a deficient number, since it is larger than the sum of its proper divisors (393358490).

663792166 is a wasteful number, since it uses less digits than its factorization.

663792166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53583.

The product of its digits is 489888, while the sum is 46.

The square root of 663792166 is about 25764.1643761252. The cubic root of 663792166 is about 872.3231020419.

The spelling of 663792166 in words is "six hundred sixty-three million, seven hundred ninety-two thousand, one hundred sixty-six".