66660015006583 has 2 divisors, whose sum is σ = 66660015006584. Its totient is φ = 66660015006582.

The previous prime is 66660015006527. The next prime is 66660015006589. The reversal of 66660015006583 is 38560051006666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66660015006583 - 2⁹ = 66660015006071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66660015006583.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66660015006589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33330007503291 + 33330007503292.

It is an arithmetic number, because the mean of its divisors is an integer number (33330007503292).

Almost surely, 2^{66660015006583} is an apocalyptic number.

66660015006583 is a deficient number, since it is larger than the sum of its proper divisors (1).

66660015006583 is an equidigital number, since it uses as much as digits as its factorization.

66660015006583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 66660015006583 in words is "sixty-six trillion, six hundred sixty billion, fifteen million, six thousand, five hundred eighty-three".