6660213260832 has 84 divisors (see below), whose sum is σ = 19659449011230. Its totient is φ = 2220071079168.

The previous prime is 6660213260809. The next prime is 6660213260839. The reversal of 6660213260832 is 2380623120666.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6054375198096 + 605838062736 = 2460564^2 + 778356^2 .

It is not an unprimeable number, because it can be changed into a prime (6660213260839) 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 13 ways as a sum of consecutive naturals, for example, 142728157 + ... + 142774812.

Almost surely, 2^{6660213260832} is an apocalyptic number.

It is an amenable number.

6660213260832 is an abundant number, since it is smaller than the sum of its proper divisors (12999235750398).

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

6660213260832 is an equidigital number, since it uses as much as digits as its factorization.

6660213260832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285502997 (or 285502974 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 6660213260832 in words is "six trillion, six hundred sixty billion, two hundred thirteen million, two hundred sixty thousand, eight hundred thirty-two".