564229857840 has 160 divisors (see below), whose sum is σ = 1908517704192. Its totient is φ = 136754688000.

The previous prime is 564229857817. The next prime is 564229857853. The reversal of 564229857840 is 48758922465.

It is a Harshad number since it is a multiple of its sum of digits (60).

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 31 ways as a sum of consecutive naturals, for example, 14556085 + ... + 14594795.

Almost surely, 2^564229857840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 564229857840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (954258852096).

564229857840 is an abundant number, since it is smaller than the sum of its proper divisors (1344287846352).

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

564229857840 is a wasteful number, since it uses less digits than its factorization.

564229857840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44259 (or 44253 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 60.

The spelling of 564229857840 in words is "five hundred sixty-four billion, two hundred twenty-nine million, eight hundred fifty-seven thousand, eight hundred forty".