201696251693843 has 2 divisors, whose sum is σ = 201696251693844. Its totient is φ = 201696251693842.

The previous prime is 201696251693813. The next prime is 201696251693851. The reversal of 201696251693843 is 348396152696102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201696251693843 - 2³⁰ = 201695177952019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201696251693843.

It is not a weakly prime, because it can be changed into another prime (201696251693813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100848125846921 + 100848125846922.

It is an arithmetic number, because the mean of its divisors is an integer number (100848125846922).

Almost surely, 2^{201696251693843} is an apocalyptic number.

201696251693843 is a deficient number, since it is larger than the sum of its proper divisors (1).

201696251693843 is an equidigital number, since it uses as much as digits as its factorization.

201696251693843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100776960, while the sum is 65.

The spelling of 201696251693843 in words is "two hundred one trillion, six hundred ninety-six billion, two hundred fifty-one million, six hundred ninety-three thousand, eight hundred forty-three".