1608158916 has 72 divisors (see below), whose sum is σ = 5003171264. Its totient is φ = 424128960.

The previous prime is 1608158897. The next prime is 1608158927. The reversal of 1608158916 is 6198518061.

1608158916 is a `hidden beast` number, since 1 + 60 + 8 + 1 + 589 + 1 + 6 = 666.

It is a super-2 number, since 2×1608158916² = 5172350198220590112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 242170 + ... + 248721.

Almost surely, 2^1608158916 is an apocalyptic number.

It is an amenable number.

1608158916 is an abundant number, since it is smaller than the sum of its proper divisors (3395012348).

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

1608158916 is a wasteful number, since it uses less digits than its factorization.

1608158916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490921 (or 490916 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 1608158916 is about 40101.8567649928. The cubic root of 1608158916 is about 1171.5917934853.

The spelling of 1608158916 in words is "one billion, six hundred eight million, one hundred fifty-eight thousand, nine hundred sixteen".