1608655456 has 24 divisors (see below), whose sum is σ = 3240695304. Its totient is φ = 785621760.

The previous prime is 1608655427. The next prime is 1608655483. The reversal of 1608655456 is 6545568061.

It is a super-2 number, since 2×1608655456² = 5175544752237135872, which contains 22 as substring.

It is a congruent number.

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, 583165 + ... + 585916.

It is an arithmetic number, because the mean of its divisors is an integer number (135028971).

Almost surely, 2^1608655456 is an apocalyptic number.

1608655456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1608655456 is an abundant number, since it is smaller than the sum of its proper divisors (1632039848).

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

1608655456 is a wasteful number, since it uses less digits than its factorization.

1608655456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169134 (or 1169126 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 46.

The square root of 1608655456 is about 40108.0472723368. The cubic root of 1608655456 is about 1171.7123624829.

The spelling of 1608655456 in words is "one billion, six hundred eight million, six hundred fifty-five thousand, four hundred fifty-six".