44612455680 has 216 divisors, whose sum is σ = 166228426728. Its totient is φ = 10981490688.

The previous prime is 44612455669. The next prime is 44612455681. The reversal of 44612455680 is 8655421644.

It is a happy number.

44612455680 is a `hidden beast` number, since 4 + 4 + 6 + 12 + 4 + 556 + 80 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2859254784 + 41753200896 = 53472^2 + 204336^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44612455681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 814 + ... + 298706.

Almost surely, 2^44612455680 is an apocalyptic number.

44612455680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44612455680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83114213364).

44612455680 is an abundant number, since it is smaller than the sum of its proper divisors (121615971048).

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

44612455680 is a wasteful number, since it uses less digits than its factorization.

44612455680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297933 (or 297916 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 44612455680 in words is "forty-four billion, six hundred twelve million, four hundred fifty-five thousand, six hundred eighty".