523376216166019 has 2 divisors, whose sum is σ = 523376216166020. Its totient is φ = 523376216166018.

The previous prime is 523376216165981. The next prime is 523376216166169. The reversal of 523376216166019 is 910661612673325.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523376216166019 is a prime.

It is a super-2 number, since 2×523376216166019² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (523376216167019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261688108083009 + 261688108083010.

It is an arithmetic number, because the mean of its divisors is an integer number (261688108083010).

Almost surely, 2^{523376216166019} is an apocalyptic number.

523376216166019 is a deficient number, since it is larger than the sum of its proper divisors (1).

523376216166019 is an equidigital number, since it uses as much as digits as its factorization.

523376216166019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 523376216166019 in words is "five hundred twenty-three trillion, three hundred seventy-six billion, two hundred sixteen million, one hundred sixty-six thousand, nineteen".