66066056064 has 96 divisors (see below), whose sum is σ = 201295074240. Its totient is φ = 20726599680.

The previous prime is 66066056053. The next prime is 66066056101. The reversal of 66066056064 is 46065066066.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1667152 + ... + 1706319.

It is an arithmetic number, because the mean of its divisors is an integer number (2096823690).

Almost surely, 2^66066056064 is an apocalyptic number.

66066056064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

66066056064 is an abundant number, since it is smaller than the sum of its proper divisors (135229018176).

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

66066056064 is a wasteful number, since it uses less digits than its factorization.

66066056064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373508 (or 3373493 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 66066056064 in words is "sixty-six billion, sixty-six million, fifty-six thousand, sixty-four", and thus it is an eban number.