64215452522566 has 8 divisors (see below), whose sum is σ = 99644667707520. Its totient is φ = 31000563286728.

The previous prime is 64215452522561. The next prime is 64215452522579. The reversal of 64215452522566 is 66522525451246.

64215452522566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64215452522561) 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 3 ways as a sum of consecutive naturals, for example, 553581487206 + ... + 553581487321.

It is an arithmetic number, because the mean of its divisors is an integer number (12455583463440).

Almost surely, 2^{64215452522566} is an apocalyptic number.

64215452522566 is a deficient number, since it is larger than the sum of its proper divisors (35429215184954).

64215452522566 is a wasteful number, since it uses less digits than its factorization.

64215452522566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107162974558.

The product of its digits is 34560000, while the sum is 55.

The spelling of 64215452522566 in words is "sixty-four trillion, two hundred fifteen billion, four hundred fifty-two million, five hundred twenty-two thousand, five hundred sixty-six".