66042364030145 has 4 divisors (see below), whose sum is σ = 79250836836180. Its totient is φ = 52833891224112.

The previous prime is 66042364030087. The next prime is 66042364030157. The reversal of 66042364030145 is 54103046324066.

66042364030145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16276802940304 + 49765561089841 = 4034452^2 + 7054471^2 .

It is a cyclic number.

It is not a de Polignac number, because 66042364030145 - 2¹⁴ = 66042364013761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66042364030096 and 66042364030105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6604236403010 + ... + 6604236403019.

It is an arithmetic number, because the mean of its divisors is an integer number (19812709209045).

Almost surely, 2^{66042364030145} is an apocalyptic number.

It is an amenable number.

66042364030145 is a deficient number, since it is larger than the sum of its proper divisors (13208472806035).

66042364030145 is a wasteful number, since it uses less digits than its factorization.

66042364030145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13208472806034.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 66042364030145 in words is "sixty-six trillion, forty-two billion, three hundred sixty-four million, thirty thousand, one hundred forty-five".