66006060949 has 2 divisors, whose sum is σ = 66006060950. Its totient is φ = 66006060948.

The previous prime is 66006060947. The next prime is 66006061003. The reversal of 66006060949 is 94906060066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65034180324 + 971880625 = 255018^2 + 31175^2 .

It is a cyclic number.

It is not a de Polignac number, because 66006060949 - 2¹ = 66006060947 is a prime.

Together with 66006060947, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 66006060899 and 66006060908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66006060947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33003030474 + 33003030475.

It is an arithmetic number, because the mean of its divisors is an integer number (33003030475).

Almost surely, 2^66006060949 is an apocalyptic number.

It is an amenable number.

66006060949 is a deficient number, since it is larger than the sum of its proper divisors (1).

66006060949 is an equidigital number, since it uses as much as digits as its factorization.

66006060949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 66006060949 in words is "sixty-six billion, six million, sixty thousand, nine hundred forty-nine".