1608449685707 has 2 divisors, whose sum is σ = 1608449685708. Its totient is φ = 1608449685706.

The previous prime is 1608449685679. The next prime is 1608449685719. The reversal of 1608449685707 is 7075869448061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1608449685707 - 2⁶ = 1608449685643 is a prime.

It is a super-2 number, since 2×1608449685707² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1608449685727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804224842853 + 804224842854.

It is an arithmetic number, because the mean of its divisors is an integer number (804224842854).

Almost surely, 2^{1608449685707} is an apocalyptic number.

1608449685707 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608449685707 is an equidigital number, since it uses as much as digits as its factorization.

1608449685707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81285120, while the sum is 65.

The spelling of 1608449685707 in words is "one trillion, six hundred eight billion, four hundred forty-nine million, six hundred eighty-five thousand, seven hundred seven".