561021363512 has 8 divisors (see below), whose sum is σ = 1051915056600. Its totient is φ = 280510681752.

The previous prime is 561021363493. The next prime is 561021363541. The reversal of 561021363512 is 215363120165.

561021363512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35063835212 + ... + 35063835227.

It is an arithmetic number, because the mean of its divisors is an integer number (131489382075).

Almost surely, 2^561021363512 is an apocalyptic number.

It is an amenable number.

561021363512 is a deficient number, since it is larger than the sum of its proper divisors (490893693088).

561021363512 is a wasteful number, since it uses less digits than its factorization.

561021363512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70127670445 (or 70127670441 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

Adding to 561021363512 its reverse (215363120165), we get a palindrome (776384483677).

The spelling of 561021363512 in words is "five hundred sixty-one billion, twenty-one million, three hundred sixty-three thousand, five hundred twelve".