45545232140 has 96 divisors (see below), whose sum is σ = 99214995264. Its totient is φ = 17548876800.

The previous prime is 45545232127. The next prime is 45545232143. The reversal of 45545232140 is 4123254554.

It is a self number, because there is not a number n which added to its sum of digits gives 45545232140.

It is not an unprimeable number, because it can be changed into a prime (45545232143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43334615 + ... + 43335665.

It is an arithmetic number, because the mean of its divisors is an integer number (1033489534).

Almost surely, 2^45545232140 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 45545232140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49607497632).

45545232140 is an abundant number, since it is smaller than the sum of its proper divisors (53669763124).

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

45545232140 is a wasteful number, since it uses less digits than its factorization.

45545232140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627 (or 1625 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 45545232140 its reverse (4123254554), we get a palindrome (49668486694).

The spelling of 45545232140 in words is "forty-five billion, five hundred forty-five million, two hundred thirty-two thousand, one hundred forty".