561100606100 has 36 divisors (see below), whose sum is σ = 1229409583584. Its totient is φ = 222261206880.

The previous prime is 561100606067. The next prime is 561100606103. The reversal of 561100606100 is 1606001165.

It is a self number, because there is not a number n which added to its sum of digits gives 561100606100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561100606103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27227594 + ... + 27248193.

Almost surely, 2^561100606100 is an apocalyptic number.

561100606100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

561100606100 is an abundant number, since it is smaller than the sum of its proper divisors (668308977484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561100606100 is a wasteful number, since it uses less digits than its factorization.

561100606100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54475904 (or 54475897 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 561100606100 its reverse (1606001165), we get a palindrome (562706607265).

The spelling of 561100606100 in words is "five hundred sixty-one billion, one hundred million, six hundred six thousand, one hundred".