66065522105072 has 60 divisors (see below), whose sum is σ = 148901396899320. Its totient is φ = 28313572629888.

The previous prime is 66065522104993. The next prime is 66065522105083. The reversal of 66065522105072 is 27050122556066.

66065522105072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66065522105072² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134412179 + ... + 134902797.

It is an arithmetic number, because the mean of its divisors is an integer number (2481689948322).

Almost surely, 2^{66065522105072} is an apocalyptic number.

It is an amenable number.

66065522105072 is an abundant number, since it is smaller than the sum of its proper divisors (82835874794248).

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

66065522105072 is a wasteful number, since it uses less digits than its factorization.

66065522105072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662398 (or 662385 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 66065522105072 in words is "sixty-six trillion, sixty-five billion, five hundred twenty-two million, one hundred five thousand, seventy-two".