66706061105120 has 96 divisors (see below), whose sum is σ = 166866843927168. Its totient is φ = 25112329166848.

The previous prime is 66706061105119. The next prime is 66706061105197. The reversal of 66706061105120 is 2150116060766.

It is a congruent 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, 139670249 + ... + 140147031.

It is an arithmetic number, because the mean of its divisors is an integer number (1738196290908).

Almost surely, 2^{66706061105120} is an apocalyptic number.

It is an amenable number.

66706061105120 is an abundant number, since it is smaller than the sum of its proper divisors (100160782822048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66706061105120 is a wasteful number, since it uses less digits than its factorization.

66706061105120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528252 (or 528244 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

Adding to 66706061105120 its reverse (2150116060766), we get a palindrome (68856177165886).

The spelling of 66706061105120 in words is "sixty-six trillion, seven hundred six billion, sixty-one million, one hundred five thousand, one hundred twenty".