3641664432 has 40 divisors (see below), whose sum is σ = 10751581696. Its totient is φ = 1040475456.

The previous prime is 3641664407. The next prime is 3641664443. The reversal of 3641664432 is 2344661463.

3641664432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

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, 5418808 + ... + 5419479.

Almost surely, 2^3641664432 is an apocalyptic number.

It is an amenable number.

3641664432 is an abundant number, since it is smaller than the sum of its proper divisors (7109917264).

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

3641664432 is a wasteful number, since it uses less digits than its factorization.

3641664432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10838305 (or 10838299 counting only the distinct ones).

The product of its digits is 248832, while the sum is 39.

The square root of 3641664432 is about 60346.2047853881. The cubic root of 3641664432 is about 1538.5087650313.

The spelling of 3641664432 in words is "three billion, six hundred forty-one million, six hundred sixty-four thousand, four hundred thirty-two".