66110655075 has 48 divisors (see below), whose sum is σ = 110137760256. Its totient is φ = 34990300800.

The previous prime is 66110655031. The next prime is 66110655089. The reversal of 66110655075 is 57055601166.

It is not a de Polignac number, because 66110655075 - 2¹¹ = 66110653027 is a prime.

It is a super-3 number, since 3×66110655075³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10723944 + ... + 10730106.

It is an arithmetic number, because the mean of its divisors is an integer number (2294536672).

Almost surely, 2^66110655075 is an apocalyptic number.

66110655075 is a deficient number, since it is larger than the sum of its proper divisors (44027105181).

66110655075 is a wasteful number, since it uses less digits than its factorization.

66110655075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7244 (or 7239 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 66110655075 in words is "sixty-six billion, one hundred ten million, six hundred fifty-five thousand, seventy-five".