66250752679 has 2 divisors, whose sum is σ = 66250752680. Its totient is φ = 66250752678.

The previous prime is 66250752599. The next prime is 66250752719. The reversal of 66250752679 is 97625705266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66250752679 - 2⁷ = 66250752551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66250752179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33125376339 + 33125376340.

It is an arithmetic number, because the mean of its divisors is an integer number (33125376340).

Almost surely, 2^66250752679 is an apocalyptic number.

66250752679 is a deficient number, since it is larger than the sum of its proper divisors (1).

66250752679 is an equidigital number, since it uses as much as digits as its factorization.

66250752679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9525600, while the sum is 55.

The spelling of 66250752679 in words is "sixty-six billion, two hundred fifty million, seven hundred fifty-two thousand, six hundred seventy-nine".