66204543133180 has 12 divisors (see below), whose sum is σ = 139029540579720. Its totient is φ = 26481817253264.

The previous prime is 66204543133129. The next prime is 66204543133237. The reversal of 66204543133180 is 8133134540266.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66204543133180.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1655113578310 + ... + 1655113578349.

It is an arithmetic number, because the mean of its divisors is an integer number (11585795048310).

Almost surely, 2^{66204543133180} is an apocalyptic number.

It is an amenable number.

66204543133180 is an abundant number, since it is smaller than the sum of its proper divisors (72824997446540).

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

66204543133180 is a wasteful number, since it uses less digits than its factorization.

66204543133180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310227156668 (or 3310227156666 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 66204543133180 in words is "sixty-six trillion, two hundred four billion, five hundred forty-three million, one hundred thirty-three thousand, one hundred eighty".