561100601105 has 16 divisors (see below), whose sum is σ = 738012904128. Its totient is φ = 406139160000.

The previous prime is 561100601093. The next prime is 561100601119. The reversal of 561100601105 is 501106001165.

It is not a de Polignac number, because 561100601105 - 2¹² = 561100597009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24163346 + ... + 24186555.

It is an arithmetic number, because the mean of its divisors is an integer number (46125806508).

Almost surely, 2^561100601105 is an apocalyptic number.

561100601105 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

561100601105 is a deficient number, since it is larger than the sum of its proper divisors (176912303023).

561100601105 is a wasteful number, since it uses less digits than its factorization.

561100601105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48350128.

The product of its (nonzero) digits is 900, while the sum is 26.

It can be divided in two parts, 56110060 and 1105, that added together give a palindrome (56111165).

The spelling of 561100601105 in words is "five hundred sixty-one billion, one hundred million, six hundred one thousand, one hundred five".