561262332316620 has 48 divisors (see below), whose sum is σ = 1714401305987328. Its totient is φ = 136063595712960.

The previous prime is 561262332316589. The next prime is 561262332316663. The reversal of 561262332316620 is 26613233262165.

It is a self number, because there is not a number n which added to its sum of digits gives 561262332316620.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425198735944 + ... + 425198737263.

It is an arithmetic number, because the mean of its divisors is an integer number (35716693874736).

Almost surely, 2^{561262332316620} is an apocalyptic number.

It is an amenable number.

561262332316620 is an abundant number, since it is smaller than the sum of its proper divisors (1153138973670708).

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

561262332316620 is a wasteful number, since it uses less digits than its factorization.

561262332316620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850397473230 (or 850397473228 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 48.

Adding to 561262332316620 its reverse (26613233262165), we get a palindrome (587875565578785).

The spelling of 561262332316620 in words is "five hundred sixty-one trillion, two hundred sixty-two billion, three hundred thirty-two million, three hundred sixteen thousand, six hundred twenty".