45521344400 has 120 divisors (see below), whose sum is σ = 126202886784. Its totient is φ = 15455692800.

The previous prime is 45521344387. The next prime is 45521344403. The reversal of 45521344400 is 444312554.

It is a super-2 number, since 2×45521344400² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45521344403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209480 + ... + 367320.

Almost surely, 2^45521344400 is an apocalyptic number.

45521344400 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 45521344400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63101443392).

45521344400 is an abundant number, since it is smaller than the sum of its proper divisors (80681542384).

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

45521344400 is a wasteful number, since it uses less digits than its factorization.

45521344400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157969 (or 157958 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 45521344400 its reverse (444312554), we get a palindrome (45965656954).

The spelling of 45521344400 in words is "forty-five billion, five hundred twenty-one million, three hundred forty-four thousand, four hundred".