561110105501 has 8 divisors (see below), whose sum is σ = 625143947904. Its totient is φ = 499246901920.

The previous prime is 561110105449. The next prime is 561110105513. The reversal of 561110105501 is 105501011165.

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 561110105501 - 2¹⁴ = 561110089117 is a prime.

It is a super-2 number, since 2×561110105501² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561110105551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542659160 + ... + 542660193.

It is an arithmetic number, because the mean of its divisors is an integer number (78142993488).

Almost surely, 2^561110105501 is an apocalyptic number.

It is an amenable number.

561110105501 is a deficient number, since it is larger than the sum of its proper divisors (64033842403).

561110105501 is a wasteful number, since it uses less digits than its factorization.

561110105501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085319411.

The product of its (nonzero) digits is 750, while the sum is 26.

Adding to 561110105501 its reverse (105501011165), we get a palindrome (666611116666).

The spelling of 561110105501 in words is "five hundred sixty-one billion, one hundred ten million, one hundred five thousand, five hundred one".