66624224224064 has 56 divisors (see below), whose sum is σ = 149870787827040. Its totient is φ = 29131239734784.

The previous prime is 66624224223959. The next prime is 66624224224073. The reversal of 66624224224064 is 46042242242666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2107278734 + ... + 2107310349.

It is an arithmetic number, because the mean of its divisors is an integer number (2676264068340).

Almost surely, 2^{66624224224064} is an apocalyptic number.

66624224224064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

66624224224064 is an abundant number, since it is smaller than the sum of its proper divisors (83246563602976).

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

66624224224064 is a wasteful number, since it uses less digits than its factorization.

66624224224064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214589127 (or 4214589117 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 50.

The spelling of 66624224224064 in words is "sixty-six trillion, six hundred twenty-four billion, two hundred twenty-four million, two hundred twenty-four thousand, sixty-four".