549450555018 has 16 divisors (see below), whose sum is σ = 1146679419456. Its totient is φ = 175187133440.

The previous prime is 549450554999. The next prime is 549450555023. The reversal of 549450555018 is 810555054945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1990762743 + ... + 1990763018.

It is an arithmetic number, because the mean of its divisors is an integer number (71667463716).

Almost surely, 2^549450555018 is an apocalyptic number.

549450555018 is an abundant number, since it is smaller than the sum of its proper divisors (597228864438).

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

549450555018 is a wasteful number, since it uses less digits than its factorization.

549450555018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981525789.

The product of its (nonzero) digits is 3600000, while the sum is 51.

The spelling of 549450555018 in words is "five hundred forty-nine billion, four hundred fifty million, five hundred fifty-five thousand, eighteen".