1608146664 has 16 divisors (see below), whose sum is σ = 4020366720. Its totient is φ = 536048880.

The previous prime is 1608146647. The next prime is 1608146717. The reversal of 1608146664 is 4666418061.

It is a super-2 number, since 2×1608146664² = 5172271385868657792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33503032 + ... + 33503079.

It is an arithmetic number, because the mean of its divisors is an integer number (251272920).

Almost surely, 2^1608146664 is an apocalyptic number.

It is an amenable number.

1608146664 is an abundant number, since it is smaller than the sum of its proper divisors (2412220056).

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

1608146664 is a wasteful number, since it uses less digits than its factorization.

1608146664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67006120 (or 67006116 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 1608146664 is about 40101.7040036954. The cubic root of 1608146664 is about 1171.5888181617.

The spelling of 1608146664 in words is "one billion, six hundred eight million, one hundred forty-six thousand, six hundred sixty-four".