163930098989 has 2 divisors, whose sum is σ = 163930098990. Its totient is φ = 163930098988.

The previous prime is 163930098967. The next prime is 163930099049. The reversal of 163930098989 is 989890039361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86161622089 + 77768476900 = 293533^2 + 278870^2 .

It is a cyclic number.

It is not a de Polignac number, because 163930098989 - 2²⁴ = 163913321773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163930098089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81965049494 + 81965049495.

It is an arithmetic number, because the mean of its divisors is an integer number (81965049495).

Almost surely, 2^163930098989 is an apocalyptic number.

It is an amenable number.

163930098989 is a deficient number, since it is larger than the sum of its proper divisors (1).

163930098989 is an equidigital number, since it uses as much as digits as its factorization.

163930098989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22674816, while the sum is 65.

The spelling of 163930098989 in words is "one hundred sixty-three billion, nine hundred thirty million, ninety-eight thousand, nine hundred eighty-nine".