66066634730 has 16 divisors (see below), whose sum is σ = 120935535840. Its totient is φ = 25978744272.

The previous prime is 66066634721. The next prime is 66066634769. The reversal of 66066634730 is 3743666066.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55988084 + ... + 55989263.

It is an arithmetic number, because the mean of its divisors is an integer number (7558470990).

Almost surely, 2^66066634730 is an apocalyptic number.

66066634730 is a deficient number, since it is larger than the sum of its proper divisors (54868901110).

66066634730 is a wasteful number, since it uses less digits than its factorization.

66066634730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111977413.

The product of its (nonzero) digits is 1959552, while the sum is 47.

The spelling of 66066634730 in words is "sixty-six billion, sixty-six million, six hundred thirty-four thousand, seven hundred thirty".