660250163 has 16 divisors (see below), whose sum is σ = 710448000. Its totient is φ = 612323712.

The previous prime is 660250117. The next prime is 660250181. The reversal of 660250163 is 361052066.

It is a cyclic number.

It is not a de Polignac number, because 660250163 - 2¹⁸ = 659988019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660250363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80873 + ... + 88661.

It is an arithmetic number, because the mean of its divisors is an integer number (44403000).

Almost surely, 2^660250163 is an apocalyptic number.

660250163 is a deficient number, since it is larger than the sum of its proper divisors (50197837).

660250163 is a wasteful number, since it uses less digits than its factorization.

660250163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7934.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 660250163 is about 25695.3334868415. Note that the first 3 decimals coincide. The cubic root of 660250163 is about 870.7687585601.

It can be divided in two parts, 6602 and 50163, that added together give a palindrome (56765).

The spelling of 660250163 in words is "six hundred sixty million, two hundred fifty thousand, one hundred sixty-three".