196599260197 has 2 divisors, whose sum is σ = 196599260198. Its totient is φ = 196599260196.

The previous prime is 196599260149. The next prime is 196599260243. The reversal of 196599260197 is 791062995691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167157504801 + 29441755396 = 408849^2 + 171586^2 .

It is a cyclic number.

It is not a de Polignac number, because 196599260197 - 2¹⁹ = 196598735909 is a prime.

It is a super-2 number, since 2×196599260197² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196599260147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98299630098 + 98299630099.

It is an arithmetic number, because the mean of its divisors is an integer number (98299630099).

Almost surely, 2^196599260197 is an apocalyptic number.

It is an amenable number.

196599260197 is a deficient number, since it is larger than the sum of its proper divisors (1).

196599260197 is an equidigital number, since it uses as much as digits as its factorization.

196599260197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16533720, while the sum is 64.

The spelling of 196599260197 in words is "one hundred ninety-six billion, five hundred ninety-nine million, two hundred sixty thousand, one hundred ninety-seven".