66555003175 has 12 divisors (see below), whose sum is σ = 82532437576. Its totient is φ = 53241271200.

The previous prime is 66555003143. The next prime is 66555003223. The reversal of 66555003175 is 57130055566.

It is not a de Polignac number, because 66555003175 - 2⁵ = 66555003143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 532420 + ... + 645430.

Almost surely, 2^66555003175 is an apocalyptic number.

66555003175 is a deficient number, since it is larger than the sum of its proper divisors (15977434401).

66555003175 is a wasteful number, since it uses less digits than its factorization.

66555003175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136578 (or 136573 counting only the distinct ones).

The product of its (nonzero) digits is 472500, while the sum is 43.

The spelling of 66555003175 in words is "sixty-six billion, five hundred fifty-five million, three thousand, one hundred seventy-five".