66106930066 has 8 divisors (see below), whose sum is σ = 100640401200. Its totient is φ = 32560129668.

The previous prime is 66106930037. The next prime is 66106930067. The reversal of 66106930066 is 66003960166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66106930067) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 246667516 + ... + 246667783.

It is an arithmetic number, because the mean of its divisors is an integer number (12580050150).

Almost surely, 2^66106930066 is an apocalyptic number.

66106930066 is a deficient number, since it is larger than the sum of its proper divisors (34533471134).

66106930066 is a wasteful number, since it uses less digits than its factorization.

66106930066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493335368.

The product of its (nonzero) digits is 209952, while the sum is 43.

The spelling of 66106930066 in words is "sixty-six billion, one hundred six million, nine hundred thirty thousand, sixty-six".