45545332240 has 20 divisors (see below), whose sum is σ = 105892897644. Its totient is φ = 18218132864.

The previous prime is 45545332237. The next prime is 45545332241. The reversal of 45545332240 is 4223354554.

It can be written as a sum of positive squares in 2 ways, for example, as 18964594944 + 26580737296 = 137712^2 + 163036^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 45545332240.

It is not an unprimeable number, because it can be changed into a prime (45545332241) 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 3 ways as a sum of consecutive naturals, for example, 284658247 + ... + 284658406.

Almost surely, 2^45545332240 is an apocalyptic number.

45545332240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45545332240 is an abundant number, since it is smaller than the sum of its proper divisors (60347565404).

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

45545332240 is a wasteful number, since it uses less digits than its factorization.

45545332240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569316666 (or 569316660 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 37.

Adding to 45545332240 its reverse (4223354554), we get a palindrome (49768686794).

The spelling of 45545332240 in words is "forty-five billion, five hundred forty-five million, three hundred thirty-two thousand, two hundred forty".