564238220220 has 48 divisors (see below), whose sum is σ = 1755407797920. Its totient is φ = 150463525248.

The previous prime is 564238220141. The next prime is 564238220261. The reversal of 564238220220 is 22022832465.

564238220220 is a `hidden beast` number, since 5 + 6 + 423 + 8 + 2 + 2 + 0 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 522442257 + ... + 522443336.

It is an arithmetic number, because the mean of its divisors is an integer number (36570995790).

Almost surely, 2^564238220220 is an apocalyptic number.

It is an amenable number.

564238220220 is an abundant number, since it is smaller than the sum of its proper divisors (1191169577700).

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

564238220220 is a wasteful number, since it uses less digits than its factorization.

564238220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044885611 (or 1044885603 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The spelling of 564238220220 in words is "five hundred sixty-four billion, two hundred thirty-eight million, two hundred twenty thousand, two hundred twenty".