64221303392 has 12 divisors (see below), whose sum is σ = 126435691116. Its totient is φ = 32110651680.

The previous prime is 64221303371. The next prime is 64221303397. The reversal of 64221303392 is 29330312246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64221303397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003457834 + ... + 1003457897.

It is an arithmetic number, because the mean of its divisors is an integer number (10536307593).

Almost surely, 2^64221303392 is an apocalyptic number.

It is an amenable number.

64221303392 is a deficient number, since it is larger than the sum of its proper divisors (62214387724).

64221303392 is a wasteful number, since it uses less digits than its factorization.

64221303392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006915741 (or 2006915733 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 35.

The spelling of 64221303392 in words is "sixty-four billion, two hundred twenty-one million, three hundred three thousand, three hundred ninety-two".