45003521200 has 120 divisors (see below), whose sum is σ = 118265734080. Its totient is φ = 16321132800.

The previous prime is 45003521191. The next prime is 45003521243. The reversal of 45003521200 is 212530054.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1654107 + ... + 1681093.

It is an arithmetic number, because the mean of its divisors is an integer number (985547784).

Almost surely, 2^45003521200 is an apocalyptic number.

45003521200 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 45003521200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59132867040).

45003521200 is an abundant number, since it is smaller than the sum of its proper divisors (73262212880).

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

45003521200 is a wasteful number, since it uses less digits than its factorization.

45003521200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27395 (or 27384 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 45003521200 in words is "forty-five billion, three million, five hundred twenty-one thousand, two hundred".