196599260149 has 2 divisors, whose sum is σ = 196599260150. Its totient is φ = 196599260148.

The previous prime is 196599260147. The next prime is 196599260197. The reversal of 196599260149 is 941062995691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196587597924 + 11662225 = 443382^2 + 3415^2 .

It is a cyclic number.

It is not a de Polignac number, because 196599260149 - 2¹ = 196599260147 is a prime.

It is a super-2 number, since 2×196599260149² (a number of 23 digits) contains 22 as substring.

Together with 196599260147, it forms a pair of twin primes.

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, 98299630074 + 98299630075.

It is an arithmetic number, because the mean of its divisors is an integer number (98299630075).

Almost surely, 2^196599260149 is an apocalyptic number.

It is an amenable number.

196599260149 is a deficient number, since it is larger than the sum of its proper divisors (1).

196599260149 is an equidigital number, since it uses as much as digits as its factorization.

196599260149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9447840, while the sum is 61.

The spelling of 196599260149 in words is "one hundred ninety-six billion, five hundred ninety-nine million, two hundred sixty thousand, one hundred forty-nine".