196456720541 has 2 divisors, whose sum is σ = 196456720542. Its totient is φ = 196456720540.

The previous prime is 196456720513. The next prime is 196456720547. The reversal of 196456720541 is 145027654691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181280944441 + 15175776100 = 425771^2 + 123190^2 .

It is a cyclic number.

It is not a de Polignac number, because 196456720541 - 2¹⁸ = 196456458397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 196456720541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196456720547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98228360270 + 98228360271.

It is an arithmetic number, because the mean of its divisors is an integer number (98228360271).

Almost surely, 2^196456720541 is an apocalyptic number.

It is an amenable number.

196456720541 is a deficient number, since it is larger than the sum of its proper divisors (1).

196456720541 is an equidigital number, since it uses as much as digits as its factorization.

196456720541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 196456720541 in words is "one hundred ninety-six billion, four hundred fifty-six million, seven hundred twenty thousand, five hundred forty-one".