44462561220 has 288 divisors, whose sum is σ = 168352853760. Its totient is φ = 9227796480.

The previous prime is 44462561207. The next prime is 44462561237. The reversal of 44462561220 is 2216526444.

44462561220 is a `hidden beast` number, since 4 + 4 + 4 + 625 + 6 + 1 + 2 + 20 = 666.

44462561220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16533636 + ... + 16536324.

It is an arithmetic number, because the mean of its divisors is an integer number (584558520).

Almost surely, 2^44462561220 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 44462561220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84176426880).

44462561220 is an abundant number, since it is smaller than the sum of its proper divisors (123890292540).

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

44462561220 is a wasteful number, since it uses less digits than its factorization.

44462561220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915 (or 3910 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The spelling of 44462561220 in words is "forty-four billion, four hundred sixty-two million, five hundred sixty-one thousand, two hundred twenty".