561265218646167 has 8 divisors (see below), whose sum is σ = 855261285556096. Its totient is φ = 320722982083512.

The previous prime is 561265218646109. The next prime is 561265218646189. The reversal of 561265218646167 is 761646812562165.

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

It is not a de Polignac number, because 561265218646167 - 2¹⁵ = 561265218613399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561265218646098 and 561265218646107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561265218641167) 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, 13363457586793 + ... + 13363457586834.

It is an arithmetic number, because the mean of its divisors is an integer number (106907660694512).

Almost surely, 2^{561265218646167} is an apocalyptic number.

561265218646167 is a deficient number, since it is larger than the sum of its proper divisors (293996066909929).

561265218646167 is a wasteful number, since it uses less digits than its factorization.

561265218646167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26726915173637.

The product of its digits is 174182400, while the sum is 66.

The spelling of 561265218646167 in words is "five hundred sixty-one trillion, two hundred sixty-five billion, two hundred eighteen million, six hundred forty-six thousand, one hundred sixty-seven".