66183549915383 has 2 divisors, whose sum is σ = 66183549915384. Its totient is φ = 66183549915382.

The previous prime is 66183549915311. The next prime is 66183549915403. The reversal of 66183549915383 is 38351994538166.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66183549915383 - 2¹⁸ = 66183549653239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66183549915583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33091774957691 + 33091774957692.

It is an arithmetic number, because the mean of its divisors is an integer number (33091774957692).

Almost surely, 2^{66183549915383} is an apocalyptic number.

66183549915383 is a deficient number, since it is larger than the sum of its proper divisors (1).

66183549915383 is an equidigital number, since it uses as much as digits as its factorization.

66183549915383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 503884800, while the sum is 71.

The spelling of 66183549915383 in words is "sixty-six trillion, one hundred eighty-three billion, five hundred forty-nine million, nine hundred fifteen thousand, three hundred eighty-three".