66110082425856 has 704 divisors, whose sum is σ = 225320659200000. Its totient is φ = 18756796907520.

The previous prime is 66110082425839. The next prime is 66110082425899. The reversal of 66110082425856 is 65852428001166.

66110082425856 is a `hidden beast` number, since 6 + 6 + 1 + 10 + 0 + 8 + 2 + 42 + 585 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 63 ways as a sum of consecutive naturals, for example, 44102789395 + ... + 44102790893.

Almost surely, 2^{66110082425856} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66110082425856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112660329600000).

66110082425856 is an abundant number, since it is smaller than the sum of its proper divisors (159210576774144).

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

66110082425856 is a wasteful number, since it uses less digits than its factorization.

66110082425856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975 (or 2951 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 66110082425856 in words is "sixty-six trillion, one hundred ten billion, eighty-two million, four hundred twenty-five thousand, eight hundred fifty-six".