205701623339 has 2 divisors, whose sum is σ = 205701623340. Its totient is φ = 205701623338.

The previous prime is 205701623261. The next prime is 205701623357. The reversal of 205701623339 is 933326107502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205701623339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205701623296 and 205701623305.

It is not a weakly prime, because it can be changed into another prime (205701623399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102850811669 + 102850811670.

It is an arithmetic number, because the mean of its divisors is an integer number (102850811670).

Almost surely, 2^205701623339 is an apocalyptic number.

205701623339 is a deficient number, since it is larger than the sum of its proper divisors (1).

205701623339 is an equidigital number, since it uses as much as digits as its factorization.

205701623339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 41.

The spelling of 205701623339 in words is "two hundred five billion, seven hundred one million, six hundred twenty-three thousand, three hundred thirty-nine".