7066509939738 has 24 divisors (see below), whose sum is σ = 15318508233600. Its totient is φ = 2354313052104.

The previous prime is 7066509939719. The next prime is 7066509939751. The reversal of 7066509939738 is 8379399056607.

7066509939738 is a `hidden beast` number, since 70 + 6 + 6 + 50 + 99 + 397 + 38 = 666.

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 11 ways as a sum of consecutive naturals, for example, 99151818 + ... + 99223061.

It is an arithmetic number, because the mean of its divisors is an integer number (638271176400).

Almost surely, 2^{7066509939738} is an apocalyptic number.

7066509939738 is an abundant number, since it is smaller than the sum of its proper divisors (8251998293862).

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

7066509939738 is a wasteful number, since it uses less digits than its factorization.

7066509939738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198376866 (or 198376863 counting only the distinct ones).

The product of its (nonzero) digits is 462944160, while the sum is 72.

The spelling of 7066509939738 in words is "seven trillion, sixty-six billion, five hundred nine million, nine hundred thirty-nine thousand, seven hundred thirty-eight".