66222045000000 has 1344 divisors, whose sum is σ = 251735580555264. Its totient is φ = 16614720000000.

The previous prime is 66222044999989. The next prime is 66222045000043. The reversal of 66222045000000 is 54022266.

66222045000000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 51614999359 + ... + 51615000641.

Almost surely, 2^{66222045000000} is an apocalyptic number.

66222045000000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66222045000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125867790277632).

66222045000000 is an abundant number, since it is smaller than the sum of its proper divisors (185513535555264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66222045000000 is an equidigital number, since it uses as much as digits as its factorization.

66222045000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404 (or 1361 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 66222045000000 its reverse (54022266), we get a palindrome (66222099022266).

The spelling of 66222045000000 in words is "sixty-six trillion, two hundred twenty-two billion, forty-five million", and thus it is an aban number.