506066454854393 has 2 divisors, whose sum is σ = 506066454854394. Its totient is φ = 506066454854392.

The previous prime is 506066454854347. The next prime is 506066454854399. The reversal of 506066454854393 is 393458454660605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 505923667606009 + 142787248384 = 22492747^2 + 377872^2 .

It is a cyclic number.

It is not a de Polignac number, because 506066454854393 - 2³⁴ = 506049274985209 is a prime.

It is a super-2 number, since 2×506066454854393² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (506066454854399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253033227427196 + 253033227427197.

It is an arithmetic number, because the mean of its divisors is an integer number (253033227427197).

Almost surely, 2^{506066454854393} is an apocalyptic number.

It is an amenable number.

506066454854393 is a deficient number, since it is larger than the sum of its proper divisors (1).

506066454854393 is an equidigital number, since it uses as much as digits as its factorization.

506066454854393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744000, while the sum is 68.

The spelling of 506066454854393 in words is "five hundred six trillion, sixty-six billion, four hundred fifty-four million, eight hundred fifty-four thousand, three hundred ninety-three".