66060287999 has 2 divisors, whose sum is σ = 66060288000. Its totient is φ = 66060287998.

The previous prime is 66060287989. The next prime is 66060288011. The reversal of 66060287999 is 99978206066.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66060287999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66060287939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33030143999 + 33030144000.

It is an arithmetic number, because the mean of its divisors is an integer number (33030144000).

Almost surely, 2^66060287999 is an apocalyptic number.

66060287999 is a deficient number, since it is larger than the sum of its proper divisors (1).

66060287999 is an equidigital number, since it uses as much as digits as its factorization.

66060287999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17635968, while the sum is 62.

The spelling of 66060287999 in words is "sixty-six billion, sixty million, two hundred eighty-seven thousand, nine hundred ninety-nine".