201567668 has 12 divisors (see below), whose sum is σ = 358526532. Its totient is φ = 99131520.

The previous prime is 201567577. The next prime is 201567677. The reversal of 201567668 is 866765102.

201567668 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9412624 + 192155044 = 3068^2 + 13862^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 412805 + ... + 413292.

It is an arithmetic number, because the mean of its divisors is an integer number (29877211).

Almost surely, 2^201567668 is an apocalyptic number.

It is an amenable number.

201567668 is a deficient number, since it is larger than the sum of its proper divisors (156958864).

201567668 is a wasteful number, since it uses less digits than its factorization.

201567668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826162 (or 826160 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 201567668 is about 14197.4528701454. The cubic root of 201567668 is about 586.3275357190.

The spelling of 201567668 in words is "two hundred one million, five hundred sixty-seven thousand, six hundred sixty-eight".