66018462753830 has 128 divisors (see below), whose sum is σ = 122593314775680. Its totient is φ = 25581825884160.

The previous prime is 66018462753811. The next prime is 66018462753833. The reversal of 66018462753830 is 3835726481066.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66018462753830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66018462753833) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60401154764 + ... + 60401155856.

It is an arithmetic number, because the mean of its divisors is an integer number (957760271685).

Almost surely, 2^{66018462753830} is an apocalyptic number.

66018462753830 is a deficient number, since it is larger than the sum of its proper divisors (56574852021850).

66018462753830 is a wasteful number, since it uses less digits than its factorization.

66018462753830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874.

The product of its (nonzero) digits is 34836480, while the sum is 59.

The spelling of 66018462753830 in words is "sixty-six trillion, eighteen billion, four hundred sixty-two million, seven hundred fifty-three thousand, eight hundred thirty".