1608705315253 has 2 divisors, whose sum is σ = 1608705315254. Its totient is φ = 1608705315252.

The previous prime is 1608705315223. The next prime is 1608705315331. The reversal of 1608705315253 is 3525135078061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 838283074084 + 770422241169 = 915578^2 + 877737^2 .

It is a cyclic number.

It is not a de Polignac number, because 1608705315253 - 2²⁵ = 1608671760821 is a prime.

It is a super-2 number, since 2×1608705315253² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1608705315223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804352657626 + 804352657627.

It is an arithmetic number, because the mean of its divisors is an integer number (804352657627).

Almost surely, 2^{1608705315253} is an apocalyptic number.

It is an amenable number.

1608705315253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608705315253 is an equidigital number, since it uses as much as digits as its factorization.

1608705315253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 1608705315253 in words is "one trillion, six hundred eight billion, seven hundred five million, three hundred fifteen thousand, two hundred fifty-three".