561542011533330 has 128 divisors (see below), whose sum is σ = 1367719584952320. Its totient is φ = 147528595468800.

The previous prime is 561542011533323. The next prime is 561542011533343. The reversal of 561542011533330 is 33335110245165.

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, 5021199094 + ... + 5021310926.

It is an arithmetic number, because the mean of its divisors is an integer number (10685309257440).

Almost surely, 2^{561542011533330} is an apocalyptic number.

561542011533330 is an abundant number, since it is smaller than the sum of its proper divisors (806177573418990).

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

561542011533330 is a wasteful number, since it uses less digits than its factorization.

561542011533330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116496.

The product of its (nonzero) digits is 486000, while the sum is 42.

Adding to 561542011533330 its reverse (33335110245165), we get a palindrome (594877121778495).

The spelling of 561542011533330 in words is "five hundred sixty-one trillion, five hundred forty-two billion, eleven million, five hundred thirty-three thousand, three hundred thirty".