43649012160 has 448 divisors, whose sum is σ = 166651228800. Its totient is φ = 10691149824.

The previous prime is 43649012117. The next prime is 43649012191. The reversal of 43649012160 is 6121094634.

43649012160 is a `hidden beast` number, since 4 + 3 + 6 + 490 + 1 + 2 + 160 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25720432 + ... + 25722128.

It is an arithmetic number, because the mean of its divisors is an integer number (371989350).

Almost surely, 2^43649012160 is an apocalyptic number.

43649012160 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 43649012160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83325614400).

43649012160 is an abundant number, since it is smaller than the sum of its proper divisors (123002216640).

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

43649012160 is a wasteful number, since it uses less digits than its factorization.

43649012160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965 (or 1949 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 43649012160 in words is "forty-three billion, six hundred forty-nine million, twelve thousand, one hundred sixty".