66025510705 has 16 divisors (see below), whose sum is σ = 98781024384. Its totient is φ = 41158759680.

The previous prime is 66025510667. The next prime is 66025510753. The reversal of 66025510705 is 50701552066.

It is not a de Polignac number, because 66025510705 - 2¹¹ = 66025508657 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 85747032 + ... + 85747801.

It is an arithmetic number, because the mean of its divisors is an integer number (6173814024).

Almost surely, 2^66025510705 is an apocalyptic number.

It is an amenable number.

66025510705 is a deficient number, since it is larger than the sum of its proper divisors (32755513679).

66025510705 is a wasteful number, since it uses less digits than its factorization.

66025510705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171494856.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 66025510705 in words is "sixty-six billion, twenty-five million, five hundred ten thousand, seven hundred five".