1608705315243 has 24 divisors (see below), whose sum is σ = 2507789099088. Its totient is φ = 987852612672.

The previous prime is 1608705315223. The next prime is 1608705315253. The reversal of 1608705315243 is 3425135078061.

It is a happy number.

1608705315243 is a `hidden beast` number, since 1 + 6 + 0 + 8 + 70 + 53 + 1 + 524 + 3 = 666.

It is not a de Polignac number, because 1608705315243 - 2⁶ = 1608705315179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1608705315223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14666580 + ... + 14775857.

It is an arithmetic number, because the mean of its divisors is an integer number (104491212462).

Almost surely, 2^{1608705315243} is an apocalyptic number.

1608705315243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1608705315243 is a deficient number, since it is larger than the sum of its proper divisors (899083783845).

1608705315243 is a wasteful number, since it uses less digits than its factorization.

1608705315243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29442923 (or 29442920 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 1608705315243 in words is "one trillion, six hundred eight billion, seven hundred five million, three hundred fifteen thousand, two hundred forty-three".