163394511047 has 2 divisors, whose sum is σ = 163394511048. Its totient is φ = 163394511046.

The previous prime is 163394511023. The next prime is 163394511067. The reversal of 163394511047 is 740115493361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163394511047 - 2¹⁴ = 163394494663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163394510989 and 163394511007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163394511067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81697255523 + 81697255524.

It is an arithmetic number, because the mean of its divisors is an integer number (81697255524).

Almost surely, 2^163394511047 is an apocalyptic number.

163394511047 is a deficient number, since it is larger than the sum of its proper divisors (1).

163394511047 is an equidigital number, since it uses as much as digits as its factorization.

163394511047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 163394511047 in words is "one hundred sixty-three billion, three hundred ninety-four million, five hundred eleven thousand, forty-seven".