561113663000 has 256 divisors, whose sum is σ = 1494110966400. Its totient is φ = 196991872000.

The previous prime is 561113662943. The next prime is 561113663021. The reversal of 561113663000 is 366311165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38591732 + ... + 38606268.

Almost surely, 2^561113663000 is an apocalyptic number.

561113663000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561113663000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747055483200).

561113663000 is an abundant number, since it is smaller than the sum of its proper divisors (932997303400).

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

561113663000 is a wasteful number, since it uses less digits than its factorization.

561113663000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14620 (or 14584 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

Adding to 561113663000 its reverse (366311165), we get a palindrome (561479974165).

The spelling of 561113663000 in words is "five hundred sixty-one billion, one hundred thirteen million, six hundred sixty-three thousand".