66165043045304 has 32 divisors (see below), whose sum is σ = 142406826468480. Its totient is φ = 28231528745184.

The previous prime is 66165043045261. The next prime is 66165043045307. The reversal of 66165043045304 is 40354034056166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66165043045307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2602451222 + ... + 2602476645.

It is an arithmetic number, because the mean of its divisors is an integer number (4450213327140).

Almost surely, 2^{66165043045304} is an apocalyptic number.

It is an amenable number.

66165043045304 is an abundant number, since it is smaller than the sum of its proper divisors (76241783423176).

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

66165043045304 is a wasteful number, since it uses less digits than its factorization.

66165043045304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5204928107 (or 5204928103 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 66165043045304 in words is "sixty-six trillion, one hundred sixty-five billion, forty-three million, forty-five thousand, three hundred four".