1601350816 has 24 divisors (see below), whose sum is σ = 3395172564. Its totient is φ = 739084800.

The previous prime is 1601350753. The next prime is 1601350823. The reversal of 1601350816 is 6180531061.

It can be written as a sum of positive squares in 2 ways, for example, as 1388307600 + 213043216 = 37260^2 + 14596^2 .

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, 1924285 + ... + 1925116.

Almost surely, 2^1601350816 is an apocalyptic number.

1601350816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1601350816 is an abundant number, since it is smaller than the sum of its proper divisors (1793821748).

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

1601350816 is a wasteful number, since it uses less digits than its factorization.

1601350816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849424 (or 3849416 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1601350816 is about 40016.8816376289. The cubic root of 1601350816 is about 1169.9361535277.

Adding to 1601350816 its reverse (6180531061), we get a palindrome (7781881877).

The spelling of 1601350816 in words is "one billion, six hundred one million, three hundred fifty thousand, eight hundred sixteen".