66061660106 has 32 divisors (see below), whose sum is σ = 107436284928. Its totient is φ = 30284400960.

The previous prime is 66061660099. The next prime is 66061660129. The reversal of 66061660106 is 60106616066.

It is a self number, because there is not a number n which added to its sum of digits gives 66061660106.

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, 3382040 + ... + 3401516.

It is an arithmetic number, because the mean of its divisors is an integer number (3357383904).

Almost surely, 2^66061660106 is an apocalyptic number.

66061660106 is a deficient number, since it is larger than the sum of its proper divisors (41374624822).

66061660106 is a wasteful number, since it uses less digits than its factorization.

66061660106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20366.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 66061660106 in words is "sixty-six billion, sixty-one million, six hundred sixty thousand, one hundred six".