66115510106 has 8 divisors (see below), whose sum is σ = 99178547520. Its totient is φ = 33055994268.

The previous prime is 66115510103. The next prime is 66115510163. The reversal of 66115510106 is 60101551166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66115510103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832946 + ... + 908861.

It is an arithmetic number, because the mean of its divisors is an integer number (12397318440).

Almost surely, 2^66115510106 is an apocalyptic number.

66115510106 is a deficient number, since it is larger than the sum of its proper divisors (33063037414).

66115510106 is a wasteful number, since it uses less digits than its factorization.

66115510106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760788.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 66115510106 in words is "sixty-six billion, one hundred fifteen million, five hundred ten thousand, one hundred six".