1659350252897 has 2 divisors, whose sum is σ = 1659350252898. Its totient is φ = 1659350252896.

The previous prime is 1659350252891. The next prime is 1659350253061. The reversal of 1659350252897 is 7982520539561.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 936783951376 + 722566301521 = 967876^2 + 850039^2 .

It is a cyclic number.

It is not a de Polignac number, because 1659350252897 - 2¹⁶ = 1659350187361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1659350252891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 829675126448 + 829675126449.

It is an arithmetic number, because the mean of its divisors is an integer number (829675126449).

Almost surely, 2^{1659350252897} is an apocalyptic number.

It is an amenable number.

1659350252897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1659350252897 is an equidigital number, since it uses as much as digits as its factorization.

1659350252897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824000, while the sum is 62.

The spelling of 1659350252897 in words is "one trillion, six hundred fifty-nine billion, three hundred fifty million, two hundred fifty-two thousand, eight hundred ninety-seven".