66107331775682 has 32 divisors (see below), whose sum is σ = 106515460007424. Its totient is φ = 30690674625600.

The previous prime is 66107331775637. The next prime is 66107331775699. The reversal of 66107331775682 is 28657713370166.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44325569 + ... + 45792692.

It is an arithmetic number, because the mean of its divisors is an integer number (3328608125232).

Almost surely, 2^{66107331775682} is an apocalyptic number.

66107331775682 is a deficient number, since it is larger than the sum of its proper divisors (40408128231742).

66107331775682 is a wasteful number, since it uses less digits than its factorization.

66107331775682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90118754.

The product of its (nonzero) digits is 53343360, while the sum is 62.

The spelling of 66107331775682 in words is "sixty-six trillion, one hundred seven billion, three hundred thirty-one million, seven hundred seventy-five thousand, six hundred eighty-two".