66066116 has 12 divisors (see below), whose sum is σ = 121700880. Its totient is φ = 31294440.

The previous prime is 66066109. The next prime is 66066137. The reversal of 66066116 is 61166066.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434570 + ... + 434721.

It is an arithmetic number, because the mean of its divisors is an integer number (10141740).

Almost surely, 2^66066116 is an apocalyptic number.

It is an amenable number.

66066116 is a deficient number, since it is larger than the sum of its proper divisors (55634764).

66066116 is a wasteful number, since it uses less digits than its factorization.

66066116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869314 (or 869312 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 66066116 is about 8128.1065445773. The cubic root of 66066116 is about 404.2589017868.

The spelling of 66066116 in words is "sixty-six million, sixty-six thousand, one hundred sixteen".