63344163556 has 24 divisors (see below), whose sum is σ = 117382400856. Its totient is φ = 29806632960.

The previous prime is 63344163457. The next prime is 63344163583. The reversal of 63344163556 is 65536144336.

It can be written as a sum of positive squares in 4 ways, for example, as 50272814656 + 13071348900 = 224216^2 + 114330^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050580 + ... + 1109236.

It is an arithmetic number, because the mean of its divisors is an integer number (4890933369).

Almost surely, 2^63344163556 is an apocalyptic number.

It is an amenable number.

63344163556 is a deficient number, since it is larger than the sum of its proper divisors (54038237300).

63344163556 is a wasteful number, since it uses less digits than its factorization.

63344163556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74559 (or 74557 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 46.

The spelling of 63344163556 in words is "sixty-three billion, three hundred forty-four million, one hundred sixty-three thousand, five hundred fifty-six".