13181820344582 has 16 divisors (see below), whose sum is σ = 19914403163904. Its totient is φ = 6543818424000.

The previous prime is 13181820344557. The next prime is 13181820344599. The reversal of 13181820344582 is 28544302818131.

It is a self number, because there is not a number n which added to its sum of digits gives 13181820344582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32917469 + ... + 33315512.

It is an arithmetic number, because the mean of its divisors is an integer number (1244650197744).

Almost surely, 2^{13181820344582} is an apocalyptic number.

13181820344582 is a deficient number, since it is larger than the sum of its proper divisors (6732582819322).

13181820344582 is a wasteful number, since it uses less digits than its factorization.

13181820344582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66233695.

The product of its (nonzero) digits is 1474560, while the sum is 50.

The spelling of 13181820344582 in words is "thirteen trillion, one hundred eighty-one billion, eight hundred twenty million, three hundred forty-four thousand, five hundred eighty-two".