561471673161 has 8 divisors (see below), whose sum is σ = 855575882944. Its totient is φ = 320840956080.

The previous prime is 561471673141. The next prime is 561471673163. The reversal of 561471673161 is 161376174165.

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

It is not a de Polignac number, because 561471673161 - 2¹¹ = 561471671113 is a prime.

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 561471673161.

It is not an unprimeable number, because it can be changed into a prime (561471673163) 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, 13368373150 + ... + 13368373191.

It is an arithmetic number, because the mean of its divisors is an integer number (106946985368).

Almost surely, 2^561471673161 is an apocalyptic number.

It is an amenable number.

561471673161 is a deficient number, since it is larger than the sum of its proper divisors (294104209783).

561471673161 is a wasteful number, since it uses less digits than its factorization.

561471673161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26736746351.

The product of its digits is 635040, while the sum is 48.

The spelling of 561471673161 in words is "five hundred sixty-one billion, four hundred seventy-one million, six hundred seventy-three thousand, one hundred sixty-one".