561436256122 has 24 divisors (see below), whose sum is σ = 1031209453440. Its totient is φ = 227951561880.

The previous prime is 561436256099. The next prime is 561436256123. The reversal of 561436256122 is 221652634165.

561436256122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (561436256123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150759754 + ... + 150763477.

It is an arithmetic number, because the mean of its divisors is an integer number (42967060560).

Almost surely, 2^561436256122 is an apocalyptic number.

561436256122 is a deficient number, since it is larger than the sum of its proper divisors (469773197318).

561436256122 is a wasteful number, since it uses less digits than its factorization.

561436256122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301523266 (or 301523259 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The spelling of 561436256122 in words is "five hundred sixty-one billion, four hundred thirty-six million, two hundred fifty-six thousand, one hundred twenty-two".