66076760149 has 2 divisors, whose sum is σ = 66076760150. Its totient is φ = 66076760148.

The previous prime is 66076760137. The next prime is 66076760219. The reversal of 66076760149 is 94106767066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46680627249 + 19396132900 = 216057^2 + 139270^2 .

It is a cyclic number.

It is not a de Polignac number, because 66076760149 - 2⁵ = 66076760117 is a prime.

It is a super-2 number, since 2×66076760149² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66076760096 and 66076760105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66070760149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33038380074 + 33038380075.

It is an arithmetic number, because the mean of its divisors is an integer number (33038380075).

Almost surely, 2^66076760149 is an apocalyptic number.

It is an amenable number.

66076760149 is a deficient number, since it is larger than the sum of its proper divisors (1).

66076760149 is an equidigital number, since it uses as much as digits as its factorization.

66076760149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 66076760149 in words is "sixty-six billion, seventy-six million, seven hundred sixty thousand, one hundred forty-nine".