564505720268 has 24 divisors (see below), whose sum is σ = 1167942871200. Its totient is φ = 233588573568.

The previous prime is 564505720253. The next prime is 564505720321. The reversal of 564505720268 is 862027505465.

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, 347601233 + ... + 347602856.

It is an arithmetic number, because the mean of its divisors is an integer number (48664286300).

Almost surely, 2^564505720268 is an apocalyptic number.

564505720268 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

564505720268 is an abundant number, since it is smaller than the sum of its proper divisors (603437150932).

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

564505720268 is a wasteful number, since it uses less digits than its factorization.

564505720268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695204129 (or 695204127 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 50.

The spelling of 564505720268 in words is "five hundred sixty-four billion, five hundred five million, seven hundred twenty thousand, two hundred sixty-eight".