561015160505 has 8 divisors (see below), whose sum is σ = 682440360072. Its totient is φ = 442664016768.

The previous prime is 561015160501. The next prime is 561015160507. The reversal of 561015160505 is 505061510165.

It can be written as a sum of positive squares in 4 ways, for example, as 51588945424 + 509426215081 = 227132^2 + 713741^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 561015160505 - 2² = 561015160501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561015160501) 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, 768513554 + ... + 768514283.

It is an arithmetic number, because the mean of its divisors is an integer number (85305045009).

Almost surely, 2^561015160505 is an apocalyptic number.

It is an amenable number.

561015160505 is a deficient number, since it is larger than the sum of its proper divisors (121425199567).

561015160505 is a wasteful number, since it uses less digits than its factorization.

561015160505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537027915.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 561015160505 in words is "five hundred sixty-one billion, fifteen million, one hundred sixty thousand, five hundred five".