66560473546212 has 48 divisors (see below), whose sum is σ = 162206416068480. Its totient is φ = 21203043552768.

The previous prime is 66560473546183. The next prime is 66560473546213. The reversal of 66560473546212 is 21264537406566.

It is a happy number.

66560473546212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66560473546213) 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 15 ways as a sum of consecutive naturals, for example, 108423013 + ... + 109035180.

It is an arithmetic number, because the mean of its divisors is an integer number (3379300334760).

Almost surely, 2^{66560473546212} is an apocalyptic number.

It is an amenable number.

66560473546212 is an abundant number, since it is smaller than the sum of its proper divisors (95645942522268).

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

66560473546212 is a wasteful number, since it uses less digits than its factorization.

66560473546212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217459332 (or 217459330 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 57.

The spelling of 66560473546212 in words is "sixty-six trillion, five hundred sixty billion, four hundred seventy-three million, five hundred forty-six thousand, two hundred twelve".