66155610110 has 16 divisors (see below), whose sum is σ = 120192998256. Its totient is φ = 26214932928.

The previous prime is 66155610071. The next prime is 66155610113. The reversal of 66155610110 is 1101655166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66155610113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30912767 + ... + 30914906.

It is an arithmetic number, because the mean of its divisors is an integer number (7512062391).

Almost surely, 2^66155610110 is an apocalyptic number.

66155610110 is a deficient number, since it is larger than the sum of its proper divisors (54037388146).

66155610110 is a wasteful number, since it uses less digits than its factorization.

66155610110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61827787.

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

The spelling of 66155610110 in words is "sixty-six billion, one hundred fifty-five million, six hundred ten thousand, one hundred ten".