66066066000052 has 12 divisors (see below), whose sum is σ = 115617317181156. Its totient is φ = 33032546805440.

The previous prime is 66066066000019. The next prime is 66066066000059. The reversal of 66066066000052 is 25000066066066.

It can be written as a sum of positive squares in 2 ways, for example, as 31407012806416 + 34659053193636 = 5604196^2 + 5887194^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66066065999972 and 66066066000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66066066000059) 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, 121242823 + ... + 121786510.

It is an arithmetic number, because the mean of its divisors is an integer number (9634776431763).

Almost surely, 2^{66066066000052} is an apocalyptic number.

It is an amenable number.

66066066000052 is a deficient number, since it is larger than the sum of its proper divisors (49551251181104).

66066066000052 is a wasteful number, since it uses less digits than its factorization.

66066066000052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243097298 (or 243097296 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 66066066000052 in words is "sixty-six trillion, sixty-six billion, sixty-six million, fifty-two", and thus it is an aban number, an eban number, and an uban number.