66508237343 has 2 divisors, whose sum is σ = 66508237344. Its totient is φ = 66508237342.

The previous prime is 66508237273. The next prime is 66508237357. The reversal of 66508237343 is 34373280566.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66508237343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66508237843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33254118671 + 33254118672.

It is an arithmetic number, because the mean of its divisors is an integer number (33254118672).

Almost surely, 2^66508237343 is an apocalyptic number.

66508237343 is a deficient number, since it is larger than the sum of its proper divisors (1).

66508237343 is an equidigital number, since it uses as much as digits as its factorization.

66508237343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 66508237343 in words is "sixty-six billion, five hundred eight million, two hundred thirty-seven thousand, three hundred forty-three".