66066000053 has 12 divisors (see below), whose sum is σ = 68820877740. Its totient is φ = 63374895360.

The previous prime is 66066000047. The next prime is 66066000079. The reversal of 66066000053 is 35000066066.

It can be written as a sum of positive squares in 2 ways, for example, as 48381521764 + 17684478289 = 219958^2 + 132983^2 .

It is not a de Polignac number, because 66066000053 - 2⁴ = 66066000037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66065999983 and 66066000019.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66066000353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9413 + ... + 363621.

It is an arithmetic number, because the mean of its divisors is an integer number (5735073145).

Almost surely, 2^66066000053 is an apocalyptic number.

It is an amenable number.

66066000053 is a deficient number, since it is larger than the sum of its proper divisors (2754877687).

66066000053 is an equidigital number, since it uses as much as digits as its factorization.

66066000053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354388 (or 354317 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 66066000053 in words is "sixty-six billion, sixty-six million, fifty-three", and thus it is an aban number and an uban number.