6660321066492 has 48 divisors (see below), whose sum is σ = 16276718223360. Its totient is φ = 2115686254528.

The previous prime is 6660321066307. The next prime is 6660321066559. The reversal of 6660321066492 is 2946601230666.

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 15 ways as a sum of consecutive naturals, for example, 44780028 + ... + 44928515.

It is an arithmetic number, because the mean of its divisors is an integer number (339098296320).

Almost surely, 2^{6660321066492} is an apocalyptic number.

It is an amenable number.

6660321066492 is an abundant number, since it is smaller than the sum of its proper divisors (9616397156868).

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

6660321066492 is a wasteful number, since it uses less digits than its factorization.

6660321066492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89708842 (or 89708840 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 51.

The spelling of 6660321066492 in words is "six trillion, six hundred sixty billion, three hundred twenty-one million, sixty-six thousand, four hundred ninety-two".