44231664960 has 504 divisors, whose sum is σ = 177658958880. Its totient is φ = 10071226368.

The previous prime is 44231664949. The next prime is 44231664979. The reversal of 44231664960 is 6946613244.

44231664960 is a `hidden beast` number, since 4 + 423 + 166 + 4 + 9 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 53484067 + ... + 53484893.

Almost surely, 2^44231664960 is an apocalyptic number.

44231664960 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 44231664960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88829479440).

44231664960 is an abundant number, since it is smaller than the sum of its proper divisors (133427293920).

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

44231664960 is a wasteful number, since it uses less digits than its factorization.

44231664960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1223 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 44231664960 in words is "forty-four billion, two hundred thirty-one million, six hundred sixty-four thousand, nine hundred sixty".