63105544322 has 18 divisors (see below), whose sum is σ = 99913231593. Its totient is φ = 29888902584.

The previous prime is 63105544321. The next prime is 63105544349. The reversal of 63105544322 is 22344550136.

It can be written as a sum of positive squares in 2 ways, for example, as 53037629401 + 10067914921 = 230299^2 + 100339^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=177631.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63105544321) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6745304 + ... + 6754652.

Almost surely, 2^63105544322 is an apocalyptic number.

63105544322 is a deficient number, since it is larger than the sum of its proper divisors (36807687271).

63105544322 is an frugal number, since it uses more digits than its factorization.

63105544322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18738 (or 9370 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 63105544322 in words is "sixty-three billion, one hundred five million, five hundred forty-four thousand, three hundred twenty-two".