44515611648 has 132 divisors (see below), whose sum is σ = 134127103968. Its totient is φ = 14193315840.

The previous prime is 44515611619. The next prime is 44515611709. The reversal of 44515611648 is 84611651544.

44515611648 is a `hidden beast` number, since 4 + 45 + 1 + 561 + 1 + 6 + 48 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106963 + ... + 316973.

It is an arithmetic number, because the mean of its divisors is an integer number (1016114424).

Almost surely, 2^44515611648 is an apocalyptic number.

44515611648 is a gapful number since it is divisible by the number (48) 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 44515611648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67063551984).

44515611648 is an abundant number, since it is smaller than the sum of its proper divisors (89611492320).

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

44515611648 is a wasteful number, since it uses less digits than its factorization.

44515611648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210060 (or 210039 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The spelling of 44515611648 in words is "forty-four billion, five hundred fifteen million, six hundred eleven thousand, six hundred forty-eight".