66110655055 has 16 divisors (see below), whose sum is σ = 79632139104. Its totient is φ = 52689087360.

The previous prime is 66110655031. The next prime is 66110655089. The reversal of 66110655055 is 55055601166.

It is not a de Polignac number, because 66110655055 - 2⁹ = 66110654543 is a prime.

It is a super-3 number, since 3×66110655055³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66110654999 and 66110655017.

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, 5225197 + ... + 5237833.

It is an arithmetic number, because the mean of its divisors is an integer number (4977008694).

Almost surely, 2^66110655055 is an apocalyptic number.

66110655055 is a deficient number, since it is larger than the sum of its proper divisors (13521484049).

66110655055 is a wasteful number, since it uses less digits than its factorization.

66110655055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16506.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 66110655055 in words is "sixty-six billion, one hundred ten million, six hundred fifty-five thousand, fifty-five".