66550710050506 has 12 divisors (see below), whose sum is σ = 109726170703506. Its totient is φ = 30250322750120.

The previous prime is 66550710050477. The next prime is 66550710050557. The reversal of 66550710050506 is 60505001705566.

It can be written as a sum of positive squares in only one way, i.e., 52815466130625 + 13735243919881 = 7267425^2 + 3706109^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137501466805 + ... + 137501467288.

Almost surely, 2^{66550710050506} is an apocalyptic number.

66550710050506 is a deficient number, since it is larger than the sum of its proper divisors (43175460653000).

66550710050506 is a wasteful number, since it uses less digits than its factorization.

66550710050506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275002934117 (or 275002934106 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 46.

The spelling of 66550710050506 in words is "sixty-six trillion, five hundred fifty billion, seven hundred ten million, fifty thousand, five hundred six".