66093975168 has 256 divisors, whose sum is σ = 205889040000. Its totient is φ = 18601132032.

The previous prime is 66093975133. The next prime is 66093975169. The reversal of 66093975168 is 86157939066.

It is not an unprimeable number, because it can be changed into a prime (66093975169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2738578 + ... + 2762606.

Almost surely, 2^66093975168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66093975168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102944520000).

66093975168 is an abundant number, since it is smaller than the sum of its proper divisors (139795064832).

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

66093975168 is a wasteful number, since it uses less digits than its factorization.

66093975168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24107 (or 24095 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 66093975168 in words is "sixty-six billion, ninety-three million, nine hundred seventy-five thousand, one hundred sixty-eight".