201039664447 has 2 divisors, whose sum is σ = 201039664448. Its totient is φ = 201039664446.

The previous prime is 201039664433. The next prime is 201039664451. The reversal of 201039664447 is 744466930102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201039664447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201039664397 and 201039664406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201039644447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100519832223 + 100519832224.

It is an arithmetic number, because the mean of its divisors is an integer number (100519832224).

Almost surely, 2^201039664447 is an apocalyptic number.

201039664447 is a deficient number, since it is larger than the sum of its proper divisors (1).

201039664447 is an equidigital number, since it uses as much as digits as its factorization.

201039664447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 201039664447 in words is "two hundred one billion, thirty-nine million, six hundred sixty-four thousand, four hundred forty-seven".