66210078070324 has 12 divisors (see below), whose sum is σ = 119863072368900. Its totient is φ = 31963485964928.

The previous prime is 66210078070321. The next prime is 66210078070373. The reversal of 66210078070324 is 42307087001266.

It can be written as a sum of positive squares in 2 ways, for example, as 22029223860900 + 44180854209424 = 4693530^2 + 6646868^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66210078070321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285388267429 + ... + 285388267660.

It is an arithmetic number, because the mean of its divisors is an integer number (9988589364075).

Almost surely, 2^{66210078070324} is an apocalyptic number.

It is an amenable number.

66210078070324 is a deficient number, since it is larger than the sum of its proper divisors (53652994298576).

66210078070324 is a wasteful number, since it uses less digits than its factorization.

66210078070324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570776535122 (or 570776535120 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 66210078070324 in words is "sixty-six trillion, two hundred ten billion, seventy-eight million, seventy thousand, three hundred twenty-four".