568163640 has 64 divisors (see below), whose sum is σ = 1859448960. Its totient is φ = 137736320.

The previous prime is 568163639. The next prime is 568163653. The reversal of 568163640 is 46361865.

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 15 ways as a sum of consecutive naturals, for example, 213894 + ... + 216533.

It is an arithmetic number, because the mean of its divisors is an integer number (29053890).

Almost surely, 2^568163640 is an apocalyptic number.

It is an amenable number.

568163640 is an abundant number, since it is smaller than the sum of its proper divisors (1291285320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

568163640 is a wasteful number, since it uses less digits than its factorization.

568163640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430452 (or 430448 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 568163640 is about 23836.1834193312. The cubic root of 568163640 is about 828.2430731656.

The spelling of 568163640 in words is "five hundred sixty-eight million, one hundred sixty-three thousand, six hundred forty".