564216266120421 has 8 divisors (see below), whose sum is σ = 752289805766304. Its totient is φ = 376143451944080.

The previous prime is 564216266120389. The next prime is 564216266120491. The reversal of 564216266120421 is 124021662612465.

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 564216266120421 - 2⁵ = 564216266120389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564216266120491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179550090 + ... + 182665451.

It is an arithmetic number, because the mean of its divisors is an integer number (94036225720788).

Almost surely, 2^{564216266120421} is an apocalyptic number.

It is an amenable number.

564216266120421 is a deficient number, since it is larger than the sum of its proper divisors (188073539645883).

564216266120421 is a wasteful number, since it uses less digits than its factorization.

564216266120421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362734771.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 564216266120421 in words is "five hundred sixty-four trillion, two hundred sixteen billion, two hundred sixty-six million, one hundred twenty thousand, four hundred twenty-one".