561205336534 has 8 divisors (see below), whose sum is σ = 841812718320. Its totient is φ = 280601097096.

The previous prime is 561205336511. The next prime is 561205336541. The reversal of 561205336534 is 435633502165.

561205336534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271929 + ... + 1093780.

It is an arithmetic number, because the mean of its divisors is an integer number (105226589790).

Almost surely, 2^561205336534 is an apocalyptic number.

561205336534 is a deficient number, since it is larger than the sum of its proper divisors (280607381786).

561205336534 is a wasteful number, since it uses less digits than its factorization.

561205336534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571174.

The product of its (nonzero) digits is 972000, while the sum is 43.

Adding to 561205336534 its reverse (435633502165), we get a palindrome (996838838699).

The spelling of 561205336534 in words is "five hundred sixty-one billion, two hundred five million, three hundred thirty-six thousand, five hundred thirty-four".