564021637345 has 8 divisors (see below), whose sum is σ = 677644380864. Its totient is φ = 450671699184.

The previous prime is 564021637339. The next prime is 564021637373. The reversal of 564021637345 is 543736120465.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 564021637345 - 2¹⁹ = 564021113057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 564021637295 and 564021637304.

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 7 ways as a sum of consecutive naturals, for example, 68196789 + ... + 68205058.

It is an arithmetic number, because the mean of its divisors is an integer number (84705547608).

Almost surely, 2^564021637345 is an apocalyptic number.

It is an amenable number.

564021637345 is a deficient number, since it is larger than the sum of its proper divisors (113622743519).

564021637345 is a wasteful number, since it uses less digits than its factorization.

564021637345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136402679.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 564021637345 in words is "five hundred sixty-four billion, twenty-one million, six hundred thirty-seven thousand, three hundred forty-five".