66270569922 has 54 divisors (see below), whose sum is σ = 146819987379. Its totient is φ = 21603439080.

The previous prime is 66270569891. The next prime is 66270569929. The reversal of 66270569922 is 22996507266.

It is a happy number.

66270569922 is a `hidden beast` number, since 6 + 6 + 2 + 70 + 569 + 9 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 33135284961 + 33135284961 = 182031^2 + 182031^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=182031.

It is not an unprimeable number, because it can be changed into a prime (66270569929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 51332097 + ... + 51333387.

Almost surely, 2^66270569922 is an apocalyptic number.

66270569922 is an abundant number, since it is smaller than the sum of its proper divisors (80549417457).

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

66270569922 is an equidigital number, since it uses as much as digits as its factorization.

66270569922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 66270569922 in words is "sixty-six billion, two hundred seventy million, five hundred sixty-nine thousand, nine hundred twenty-two".