561110005505 has 16 divisors (see below), whose sum is σ = 770607690240. Its totient is φ = 384218448192.

The previous prime is 561110005483. The next prime is 561110005513. The reversal of 561110005505 is 505500011165.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 561110005505 - 2⁶ = 561110005441 is a prime.

It is a super-2 number, since 2×561110005505² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11281049 + ... + 11330678.

It is an arithmetic number, because the mean of its divisors is an integer number (48162980640).

Almost surely, 2^561110005505 is an apocalyptic number.

It is an amenable number.

561110005505 is a deficient number, since it is larger than the sum of its proper divisors (209497684735).

561110005505 is a wasteful number, since it uses less digits than its factorization.

561110005505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22612448.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 561110005505 in words is "five hundred sixty-one billion, one hundred ten million, five thousand, five hundred five".