555500440081 has 8 divisors (see below), whose sum is σ = 599640655680. Its totient is φ = 513025893072.

The previous prime is 555500440069. The next prime is 555500440091. The reversal of 555500440081 is 180044005555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 555500440081 - 2⁵ = 555500440049 is a prime.

It is a super-2 number, since 2×555500440081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 555500440081.

It is not an unprimeable number, because it can be changed into a prime (555500440091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416416455 + ... + 416417788.

It is an arithmetic number, because the mean of its divisors is an integer number (74955081960).

Almost surely, 2^555500440081 is an apocalyptic number.

It is an amenable number.

555500440081 is a deficient number, since it is larger than the sum of its proper divisors (44140215599).

555500440081 is a wasteful number, since it uses less digits than its factorization.

555500440081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832834295.

The product of its (nonzero) digits is 80000, while the sum is 37.

The spelling of 555500440081 in words is "five hundred fifty-five billion, five hundred million, four hundred forty thousand, eighty-one".