6665320326724 has 12 divisors (see below), whose sum is σ = 12066528177900. Its totient is φ = 3217740847328.

The previous prime is 6665320326683. The next prime is 6665320326793. The reversal of 6665320326724 is 4276230235666.

It can be written as a sum of positive squares in 2 ways, for example, as 3974959312900 + 2690361013824 = 1993730^2 + 1640232^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28729828879 + ... + 28729829110.

It is an arithmetic number, because the mean of its divisors is an integer number (1005544014825).

Almost surely, 2^{6665320326724} is an apocalyptic number.

It is an amenable number.

6665320326724 is a deficient number, since it is larger than the sum of its proper divisors (5401207851176).

6665320326724 is a wasteful number, since it uses less digits than its factorization.

6665320326724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57459658022 (or 57459658020 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 52.

The spelling of 6665320326724 in words is "six trillion, six hundred sixty-five billion, three hundred twenty million, three hundred twenty-six thousand, seven hundred twenty-four".