66265270180 has 12 divisors (see below), whose sum is σ = 139157067420. Its totient is φ = 26506108064.

The previous prime is 66265270163. The next prime is 66265270189. The reversal of 66265270180 is 8107256266.

It can be written as a sum of positive squares in 2 ways, for example, as 16006804324 + 50258465856 = 126518^2 + 224184^2 .

It is not an unprimeable number, because it can be changed into a prime (66265270189) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1656631735 + ... + 1656631774.

It is an arithmetic number, because the mean of its divisors is an integer number (11596422285).

Almost surely, 2^66265270180 is an apocalyptic number.

It is an amenable number.

66265270180 is an abundant number, since it is smaller than the sum of its proper divisors (72891797240).

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

66265270180 is a wasteful number, since it uses less digits than its factorization.

66265270180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313263518 (or 3313263516 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 66265270180 in words is "sixty-six billion, two hundred sixty-five million, two hundred seventy thousand, one hundred eighty".