64503966643199 has 8 divisors (see below), whose sum is σ = 64582880683008. Its totient is φ = 64425069777240.

The previous prime is 64503966643183. The next prime is 64503966643217. The reversal of 64503966643199 is 99134666930546.

64503966643199 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 cyclic number.

It is not a de Polignac number, because 64503966643199 - 2⁴ = 64503966643183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64503966543199) 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, 3231074 + ... + 11808800.

It is an arithmetic number, because the mean of its divisors is an integer number (8072860085376).

Almost surely, 2^{64503966643199} is an apocalyptic number.

64503966643199 is a deficient number, since it is larger than the sum of its proper divisors (78914039809).

64503966643199 is an equidigital number, since it uses as much as digits as its factorization.

64503966643199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8586925.

The product of its (nonzero) digits is 680244480, while the sum is 71.

The spelling of 64503966643199 in words is "sixty-four trillion, five hundred three billion, nine hundred sixty-six million, six hundred forty-three thousand, one hundred ninety-nine".