43161481500 has 96 divisors (see below), whose sum is σ = 125832435456. Its totient is φ = 11496340800.

The previous prime is 43161481477. The next prime is 43161481529. The reversal of 43161481500 is 518416134.

43161481500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1308207 + ... + 1340793.

It is an arithmetic number, because the mean of its divisors is an integer number (1310754536).

Almost surely, 2^43161481500 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 43161481500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62916217728).

43161481500 is an abundant number, since it is smaller than the sum of its proper divisors (82670953956).

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

43161481500 is a wasteful number, since it uses less digits than its factorization.

43161481500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33492 (or 33480 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 43161481500 its reverse (518416134), we get a palindrome (43679897634).

The spelling of 43161481500 in words is "forty-three billion, one hundred sixty-one million, four hundred eighty-one thousand, five hundred".