163701125197 has 2 divisors, whose sum is σ = 163701125198. Its totient is φ = 163701125196.

The previous prime is 163701125171. The next prime is 163701125213. The reversal of 163701125197 is 791521107361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84135383721 + 79565741476 = 290061^2 + 282074^2 .

It is a cyclic number.

It is not a de Polignac number, because 163701125197 - 2¹⁹ = 163700600909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163701125597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81850562598 + 81850562599.

It is an arithmetic number, because the mean of its divisors is an integer number (81850562599).

Almost surely, 2^163701125197 is an apocalyptic number.

It is an amenable number.

163701125197 is a deficient number, since it is larger than the sum of its proper divisors (1).

163701125197 is an equidigital number, since it uses as much as digits as its factorization.

163701125197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 43.

The spelling of 163701125197 in words is "one hundred sixty-three billion, seven hundred one million, one hundred twenty-five thousand, one hundred ninety-seven".