550561201161 has 8 divisors (see below), whose sum is σ = 734085397824. Its totient is φ = 367038902640.

The previous prime is 550561201159. The next prime is 550561201181. The reversal of 550561201161 is 161102165055.

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

It is not a de Polignac number, because 550561201161 - 2¹ = 550561201159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550561201181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471940 + ... + 1150586.

It is an arithmetic number, because the mean of its divisors is an integer number (91760674728).

Almost surely, 2^550561201161 is an apocalyptic number.

It is an amenable number.

550561201161 is a deficient number, since it is larger than the sum of its proper divisors (183524196663).

550561201161 is a wasteful number, since it uses less digits than its factorization.

550561201161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949071.

The product of its (nonzero) digits is 9000, while the sum is 33.

The spelling of 550561201161 in words is "five hundred fifty billion, five hundred sixty-one million, two hundred one thousand, one hundred sixty-one".