66107305344 has 64 divisors (see below), whose sum is σ = 178910745840. Its totient is φ = 21619992576.

The previous prime is 66107305343. The next prime is 66107305349. The reversal of 66107305344 is 44350370166.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66107305343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1603747 + ... + 1644450.

Almost surely, 2^66107305344 is an apocalyptic number.

66107305344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

66107305344 is an abundant number, since it is smaller than the sum of its proper divisors (112803440496).

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

66107305344 is a wasteful number, since it uses less digits than its factorization.

66107305344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248267 (or 3248255 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 66107305344 in words is "sixty-six billion, one hundred seven million, three hundred five thousand, three hundred forty-four".