4331645556 has 48 divisors (see below), whose sum is σ = 11563216896. Its totient is φ = 1236309984.

The previous prime is 4331645519. The next prime is 4331645557. The reversal of 4331645556 is 6555461334.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4331645557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54565 + ... + 107891.

It is an arithmetic number, because the mean of its divisors is an integer number (240900352).

Almost surely, 2^4331645556 is an apocalyptic number.

It is an amenable number.

4331645556 is an abundant number, since it is smaller than the sum of its proper divisors (7231571340).

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

4331645556 is a wasteful number, since it uses less digits than its factorization.

4331645556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54308 (or 54306 counting only the distinct ones).

The product of its digits is 648000, while the sum is 42.

The square root of 4331645556 is about 65815.2380228166. The cubic root of 4331645556 is about 1630.1127245866.

The spelling of 4331645556 in words is "four billion, three hundred thirty-one million, six hundred forty-five thousand, five hundred fifty-six".