66605015110 has 32 divisors (see below), whose sum is σ = 120288732480. Its totient is φ = 26553266688.

The previous prime is 66605015093. The next prime is 66605015123. The reversal of 66605015110 is 1151050666.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 8586994 + ... + 8594746.

It is an arithmetic number, because the mean of its divisors is an integer number (3759022890).

Almost surely, 2^66605015110 is an apocalyptic number.

66605015110 is a deficient number, since it is larger than the sum of its proper divisors (53683717370).

66605015110 is a wasteful number, since it uses less digits than its factorization.

66605015110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10512.

The product of its (nonzero) digits is 5400, while the sum is 31.

Adding to 66605015110 its reverse (1151050666), we get a palindrome (67756065776).

The spelling of 66605015110 in words is "sixty-six billion, six hundred five million, fifteen thousand, one hundred ten".