4445512656 has 80 divisors (see below), whose sum is σ = 12390081984. Its totient is φ = 1365368832.

The previous prime is 4445512649. The next prime is 4445512661. The reversal of 4445512656 is 6562155444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353875 + ... + 366221.

Almost surely, 2^4445512656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4445512656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6195040992).

4445512656 is an abundant number, since it is smaller than the sum of its proper divisors (7944569328).

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

4445512656 is a wasteful number, since it uses less digits than its factorization.

4445512656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12948 (or 12942 counting only the distinct ones).

The product of its digits is 576000, while the sum is 42.

The square root of 4445512656 is about 66674.6777719998. The cubic root of 4445512656 is about 1644.2730941472.

The spelling of 4445512656 in words is "four billion, four hundred forty-five million, five hundred twelve thousand, six hundred fifty-six".