564442722641 has 4 divisors (see below), whose sum is σ = 645077397312. Its totient is φ = 483808047972.

The previous prime is 564442722577. The next prime is 564442722647. The reversal of 564442722641 is 146227244465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146227244465 = 5 ⋅29245448893.

It is a cyclic number.

It is not a de Polignac number, because 564442722641 - 2⁶ = 564442722577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (564442722647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40317337325 + ... + 40317337338.

It is an arithmetic number, because the mean of its divisors is an integer number (161269349328).

Almost surely, 2^564442722641 is an apocalyptic number.

It is an amenable number.

564442722641 is a deficient number, since it is larger than the sum of its proper divisors (80634674671).

564442722641 is an equidigital number, since it uses as much as digits as its factorization.

564442722641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80634674670.

The product of its digits is 2580480, while the sum is 47.

The spelling of 564442722641 in words is "five hundred sixty-four billion, four hundred forty-two million, seven hundred twenty-two thousand, six hundred forty-one".