660131066 has 16 divisors (see below), whose sum is σ = 1132081920. Its totient is φ = 282806160.

The previous prime is 660131039. The next prime is 660131071.

660131066 is nontrivially palindromic in base 10.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37775 + ... + 52413.

It is an arithmetic number, because the mean of its divisors is an integer number (70755120).

Almost surely, 2^660131066 is an apocalyptic number.

660131066 is a deficient number, since it is larger than the sum of its proper divisors (471950854).

660131066 is a wasteful number, since it uses less digits than its factorization.

660131066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17869.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 660131066 is about 25693.0158992673. The cubic root of 660131066 is about 870.7163985160.

The spelling of 660131066 in words is "six hundred sixty million, one hundred thirty-one thousand, sixty-six".