564020666 has 16 divisors (see below), whose sum is σ = 923317920. Its totient is φ = 256268880.

The previous prime is 564020657. The next prime is 564020689. The reversal of 564020666 is 666020465.

564020666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84545 + ... + 90971.

It is an arithmetic number, because the mean of its divisors is an integer number (57707370).

Almost surely, 2^564020666 is an apocalyptic number.

564020666 is a deficient number, since it is larger than the sum of its proper divisors (359297254).

564020666 is a wasteful number, since it uses less digits than its factorization.

564020666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10429.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 564020666 is about 23749.1192678802. The cubic root of 564020666 is about 826.2250137894.

The spelling of 564020666 in words is "five hundred sixty-four million, twenty thousand, six hundred sixty-six".