640016182 has 12 divisors (see below), whose sum is σ = 1039553460. Its totient is φ = 295391928.

The previous prime is 640016149. The next prime is 640016203. The reversal of 640016182 is 281610046.

It is a self number, because there is not a number n which added to its sum of digits gives 640016182.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 946432 + ... + 947107.

It is an arithmetic number, because the mean of its divisors is an integer number (86629455).

Almost surely, 2^640016182 is an apocalyptic number.

640016182 is a deficient number, since it is larger than the sum of its proper divisors (399537278).

640016182 is a wasteful number, since it uses less digits than its factorization.

640016182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893567 (or 1893554 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 640016182 is about 25298.5411041823. The cubic root of 640016182 is about 861.7811390895.

The spelling of 640016182 in words is "six hundred forty million, sixteen thousand, one hundred eighty-two".