4442661616 has 20 divisors (see below), whose sum is σ = 8807836312. Its totient is φ = 2169671616.

The previous prime is 4442661599. The next prime is 4442661637. The reversal of 4442661616 is 6161662444.

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, 3227991 + ... + 3229366.

Almost surely, 2^4442661616 is an apocalyptic number.

It is an amenable number.

4442661616 is a deficient number, since it is larger than the sum of its proper divisors (4365174696).

4442661616 is a wasteful number, since it uses less digits than its factorization.

4442661616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6457408 (or 6457402 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 4442661616 is about 66653.2941121442. The cubic root of 4442661616 is about 1643.9215118331.

The spelling of 4442661616 in words is "four billion, four hundred forty-two million, six hundred sixty-one thousand, six hundred sixteen".