66066000056 has 32 divisors (see below), whose sum is σ = 141699183840. Its totient is φ = 28288163328.

The previous prime is 66066000047. The next prime is 66066000079. The reversal of 66066000056 is 65000066066.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 476285 + ... + 599148.

It is an arithmetic number, because the mean of its divisors is an integer number (4428099495).

Almost surely, 2^66066000056 is an apocalyptic number.

It is an amenable number.

66066000056 is an abundant number, since it is smaller than the sum of its proper divisors (75633183784).

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

66066000056 is a wasteful number, since it uses less digits than its factorization.

66066000056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076543 (or 1076539 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 66066000056 in words is "sixty-six billion, sixty-six million, fifty-six", and thus it is an aban number, an eban number, and an uban number.