4432156661 has 8 divisors (see below), whose sum is σ = 4444060800. Its totient is φ = 4420267488.

The previous prime is 4432156643. The next prime is 4432156669. The reversal of 4432156661 is 1666512344.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4432156661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4432156669) 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 7 ways as a sum of consecutive naturals, for example, 810665 + ... + 816113.

It is an arithmetic number, because the mean of its divisors is an integer number (555507600).

Almost surely, 2^4432156661 is an apocalyptic number.

It is an amenable number.

4432156661 is a deficient number, since it is larger than the sum of its proper divisors (11904139).

4432156661 is a wasteful number, since it uses less digits than its factorization.

4432156661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7483.

The product of its digits is 103680, while the sum is 38.

The square root of 4432156661 is about 66574.4445038785. Note that the first 3 decimals coincide. The cubic root of 4432156661 is about 1642.6247703467.

The spelling of 4432156661 in words is "four billion, four hundred thirty-two million, one hundred fifty-six thousand, six hundred sixty-one".