1696603818817 has 2 divisors, whose sum is σ = 1696603818818. Its totient is φ = 1696603818816.

The previous prime is 1696603818779. The next prime is 1696603818823. The reversal of 1696603818817 is 7188183066961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 937612636416 + 758991182401 = 968304^2 + 871201^2 .

It is a cyclic number.

It is not a de Polignac number, because 1696603818817 - 2¹¹ = 1696603816769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1696603819817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 848301909408 + 848301909409.

It is an arithmetic number, because the mean of its divisors is an integer number (848301909409).

Almost surely, 2^{1696603818817} is an apocalyptic number.

It is an amenable number.

1696603818817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1696603818817 is an equidigital number, since it uses as much as digits as its factorization.

1696603818817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 64.

The spelling of 1696603818817 in words is "one trillion, six hundred ninety-six billion, six hundred three million, eight hundred eighteen thousand, eight hundred seventeen".