1608618465608 has 128 divisors (see below), whose sum is σ = 3986623630080. Its totient is φ = 589124567040.

The previous prime is 1608618465607. The next prime is 1608618465617. The reversal of 1608618465608 is 8065648168061.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1608618465607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8249816 + ... + 8442552.

It is an arithmetic number, because the mean of its divisors is an integer number (31145497110).

Almost surely, 2^{1608618465608} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1608618465608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1993311815040).

1608618465608 is an abundant number, since it is smaller than the sum of its proper divisors (2378005164472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1608618465608 is a wasteful number, since it uses less digits than its factorization.

1608618465608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193575 (or 193571 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 59.

The spelling of 1608618465608 in words is "one trillion, six hundred eight billion, six hundred eighteen million, four hundred sixty-five thousand, six hundred eight".