554243554440 has 96 divisors (see below), whose sum is σ = 1802281777920. Its totient is φ = 147717032064.

The previous prime is 554243554399. The next prime is 554243554453. The reversal of 554243554440 is 44455342455.

It is a happy number.

554243554440 is a `hidden beast` number, since 5 + 54 + 2 + 4 + 3 + 554 + 4 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234019 + ... + 1078541.

It is an arithmetic number, because the mean of its divisors is an integer number (18773768520).

Almost surely, 2^554243554440 is an apocalyptic number.

It is an amenable number.

554243554440 is an abundant number, since it is smaller than the sum of its proper divisors (1248038223480).

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

554243554440 is a wasteful number, since it uses less digits than its factorization.

554243554440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846363 (or 846356 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 45.

Adding to 554243554440 its reverse (44455342455), we get a palindrome (598698896895).

The spelling of 554243554440 in words is "five hundred fifty-four billion, two hundred forty-three million, five hundred fifty-four thousand, four hundred forty".