66670374041 has 2 divisors, whose sum is σ = 66670374042. Its totient is φ = 66670374040.

The previous prime is 66670373993. The next prime is 66670374061. The reversal of 66670374041 is 14047307666.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37948598416 + 28721775625 = 194804^2 + 169475^2 .

It is a cyclic number.

It is not a de Polignac number, because 66670374041 - 2¹⁰ = 66670373017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66670373983 and 66670374001.

It is not a weakly prime, because it can be changed into another prime (66670374061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33335187020 + 33335187021.

It is an arithmetic number, because the mean of its divisors is an integer number (33335187021).

Almost surely, 2^66670374041 is an apocalyptic number.

It is an amenable number.

66670374041 is a deficient number, since it is larger than the sum of its proper divisors (1).

66670374041 is an equidigital number, since it uses as much as digits as its factorization.

66670374041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 44.

The spelling of 66670374041 in words is "sixty-six billion, six hundred seventy million, three hundred seventy-four thousand, forty-one".