561266236434 has 8 divisors (see below), whose sum is σ = 1122532472880. Its totient is φ = 187088745476.

The previous prime is 561266236429. The next prime is 561266236471. The reversal of 561266236434 is 434632662165.

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

561266236434 is an admirable 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, 46772186364 + ... + 46772186375.

It is an arithmetic number, because the mean of its divisors is an integer number (140316559110).

Almost surely, 2^561266236434 is an apocalyptic number.

561266236434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

561266236434 is a wasteful number, since it uses less digits than its factorization.

561266236434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93544372744.

The product of its digits is 3732480, while the sum is 48.

Adding to 561266236434 its reverse (434632662165), we get a palindrome (995898898599).

The spelling of 561266236434 in words is "five hundred sixty-one billion, two hundred sixty-six million, two hundred thirty-six thousand, four hundred thirty-four".