45545333440 has 112 divisors (see below), whose sum is σ = 109805980032. Its totient is φ = 17991991296.

The previous prime is 45545333417. The next prime is 45545333453. The reversal of 45545333440 is 4433354554.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 45545333393 and 45545333402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17908809 + ... + 17911351.

It is an arithmetic number, because the mean of its divisors is an integer number (980410536).

Almost surely, 2^45545333440 is an apocalyptic number.

45545333440 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 45545333440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54902990016).

45545333440 is an abundant number, since it is smaller than the sum of its proper divisors (64260646592).

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

45545333440 is a wasteful number, since it uses less digits than its factorization.

45545333440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234 (or 3224 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 40.

Adding to 45545333440 its reverse (4433354554), we get a palindrome (49978687994).

The spelling of 45545333440 in words is "forty-five billion, five hundred forty-five million, three hundred thirty-three thousand, four hundred forty".