45503364420 has 144 divisors (see below), whose sum is σ = 142135418880. Its totient is φ = 11774792448.

The previous prime is 45503364409. The next prime is 45503364443. The reversal of 45503364420 is 2446330554.

45503364420 is a `hidden beast` number, since 4 + 5 + 5 + 0 + 3 + 3 + 644 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2541861 + ... + 2559699.

It is an arithmetic number, because the mean of its divisors is an integer number (987051520).

Almost surely, 2^45503364420 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 45503364420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71067709440).

45503364420 is an abundant number, since it is smaller than the sum of its proper divisors (96632054460).

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

45503364420 is a wasteful number, since it uses less digits than its factorization.

45503364420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18274 (or 18269 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 45503364420 its reverse (2446330554), we get a palindrome (47949694974).

The spelling of 45503364420 in words is "forty-five billion, five hundred three million, three hundred sixty-four thousand, four hundred twenty".