163146223234493 has 2 divisors, whose sum is σ = 163146223234494. Its totient is φ = 163146223234492.

The previous prime is 163146223234469. The next prime is 163146223234513. The reversal of 163146223234493 is 394432322641361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91997217544324 + 71149005690169 = 9591518^2 + 8434987^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163146223234493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163146223234403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81573111617246 + 81573111617247.

It is an arithmetic number, because the mean of its divisors is an integer number (81573111617247).

Almost surely, 2^{163146223234493} is an apocalyptic number.

It is an amenable number.

163146223234493 is a deficient number, since it is larger than the sum of its proper divisors (1).

163146223234493 is an equidigital number, since it uses as much as digits as its factorization.

163146223234493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13436928, while the sum is 53.

The spelling of 163146223234493 in words is "one hundred sixty-three trillion, one hundred forty-six billion, two hundred twenty-three million, two hundred thirty-four thousand, four hundred ninety-three".