1600078916 has 24 divisors (see below), whose sum is σ = 2825660376. Its totient is φ = 792780800.

The previous prime is 1600078889. The next prime is 1600078993. The reversal of 1600078916 is 6198700061.

It can be written as a sum of positive squares in 4 ways, for example, as 1321322500 + 278756416 = 36350^2 + 16696^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1600078916.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198566 + ... + 206466.

It is an arithmetic number, because the mean of its divisors is an integer number (117735849).

Almost surely, 2^1600078916 is an apocalyptic number.

It is an amenable number.

1600078916 is a deficient number, since it is larger than the sum of its proper divisors (1225581460).

1600078916 is a wasteful number, since it uses less digits than its factorization.

1600078916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8359 (or 8357 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1600078916 is about 40000.9864378368. The cubic root of 1600078916 is about 1169.6263242843.

Adding to 1600078916 its reverse (6198700061), we get a palindrome (7798778977).

The spelling of 1600078916 in words is "one billion, six hundred million, seventy-eight thousand, nine hundred sixteen".