550018720172 has 6 divisors (see below), whose sum is σ = 962532760308. Its totient is φ = 275009360084.

The previous prime is 550018720169. The next prime is 550018720183. The reversal of 550018720172 is 271027810055.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68752340018 + ... + 68752340025.

It is an arithmetic number, because the mean of its divisors is an integer number (160422126718).

Almost surely, 2^550018720172 is an apocalyptic number.

It is an amenable number.

550018720172 is a deficient number, since it is larger than the sum of its proper divisors (412514040136).

550018720172 is a wasteful number, since it uses less digits than its factorization.

550018720172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137504680047 (or 137504680045 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 38.

The spelling of 550018720172 in words is "five hundred fifty billion, eighteen million, seven hundred twenty thousand, one hundred seventy-two".