66050505505 has 32 divisors (see below), whose sum is σ = 83931724800. Its totient is φ = 49760568000.

The previous prime is 66050505463. The next prime is 66050505523. The reversal of 66050505505 is 50550505066.

It is not a de Polignac number, because 66050505505 - 2²¹ = 66048408353 is a prime.

It is a super-3 number, since 3×66050505505³ (a number of 33 digits) contains 333 as substring.

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 31 ways as a sum of consecutive naturals, for example, 11285830 + ... + 11291680.

It is an arithmetic number, because the mean of its divisors is an integer number (2622866400).

Almost surely, 2^66050505505 is an apocalyptic number.

It is an amenable number.

66050505505 is a deficient number, since it is larger than the sum of its proper divisors (17881219295).

66050505505 is a wasteful number, since it uses less digits than its factorization.

66050505505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6565.

The product of its (nonzero) digits is 112500, while the sum is 37.

The spelling of 66050505505 in words is "sixty-six billion, fifty million, five hundred five thousand, five hundred five".