1601643336 has 16 divisors (see below), whose sum is σ = 4004108400. Its totient is φ = 533881104.

The previous prime is 1601643331. The next prime is 1601643359. The reversal of 1601643336 is 6333461061.

It is a super-2 number, since 2×1601643336² = 5130522751506417792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1601643297 and 1601643306.

It is not an unprimeable number, because it can be changed into a prime (1601643331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33367546 + ... + 33367593.

It is an arithmetic number, because the mean of its divisors is an integer number (250256775).

Almost surely, 2^1601643336 is an apocalyptic number.

It is an amenable number.

1601643336 is an abundant number, since it is smaller than the sum of its proper divisors (2402465064).

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

1601643336 is a wasteful number, since it uses less digits than its factorization.

1601643336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66735148 (or 66735144 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 1601643336 is about 40020.5364281890. The cubic root of 1601643336 is about 1170.0073869064.

The spelling of 1601643336 in words is "one billion, six hundred one million, six hundred forty-three thousand, three hundred thirty-six".