66565127275 has 6 divisors (see below), whose sum is σ = 82540757852. Its totient is φ = 53252101800.

The previous prime is 66565127267. The next prime is 66565127281. The reversal of 66565127275 is 57272156566.

It is not a de Polignac number, because 66565127275 - 2³ = 66565127267 is a prime.

It is a Duffinian number.

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, 1331302521 + ... + 1331302570.

Almost surely, 2^66565127275 is an apocalyptic number.

66565127275 is a deficient number, since it is larger than the sum of its proper divisors (15975630577).

66565127275 is a wasteful number, since it uses less digits than its factorization.

66565127275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662605101 (or 2662605096 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 52.

The spelling of 66565127275 in words is "sixty-six billion, five hundred sixty-five million, one hundred twenty-seven thousand, two hundred seventy-five".