1601683864 has 16 divisors (see below), whose sum is σ = 3276171720. Its totient is φ = 728038080.

The previous prime is 1601683859. The next prime is 1601683871. The reversal of 1601683864 is 4683861061.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1601683864.

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, 9100389 + ... + 9100564.

Almost surely, 2^1601683864 is an apocalyptic number.

It is an amenable number.

1601683864 is an abundant number, since it is smaller than the sum of its proper divisors (1674487856).

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

1601683864 is a wasteful number, since it uses less digits than its factorization.

1601683864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18200970 (or 18200966 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 1601683864 is about 40021.0427650255. The cubic root of 1601683864 is about 1170.0172554496.

The spelling of 1601683864 in words is "one billion, six hundred one million, six hundred eighty-three thousand, eight hundred sixty-four".