1600816816 has 20 divisors (see below), whose sum is σ = 3140845600. Its totient is φ = 790276032.

The previous prime is 1600816807. The next prime is 1600816829. The reversal of 1600816816 is 6186180061.

It is a happy number.

It is a super-2 number, since 2×1600816816² = 5125228956776755712, 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, 631971 + ... + 634498.

It is an arithmetic number, because the mean of its divisors is an integer number (157042280).

Almost surely, 2^1600816816 is an apocalyptic number.

1600816816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1600816816 is a deficient number, since it is larger than the sum of its proper divisors (1540028784).

1600816816 is a wasteful number, since it uses less digits than its factorization.

1600816816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266556 (or 1266550 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 1600816816 is about 40010.2088972302. The cubic root of 1600816816 is about 1169.8060934649.

Adding to 1600816816 its reverse (6186180061), we get a palindrome (7786996877).

The spelling of 1600816816 in words is "one billion, six hundred million, eight hundred sixteen thousand, eight hundred sixteen".