561490950000 has 240 divisors, whose sum is σ = 1891870912512. Its totient is φ = 143220000000.

The previous prime is 561490949989. The next prime is 561490950067. The reversal of 561490950000 is 59094165.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3368625 + ... + 3531375.

Almost surely, 2^561490950000 is an apocalyptic number.

561490950000 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 561490950000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (945935456256).

561490950000 is an abundant number, since it is smaller than the sum of its proper divisors (1330379962512).

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

561490950000 is a wasteful number, since it uses less digits than its factorization.

561490950000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162810 (or 162784 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The spelling of 561490950000 in words is "five hundred sixty-one billion, four hundred ninety million, nine hundred fifty thousand".