18482645954816 has 18 divisors (see below), whose sum is σ = 36893094074382. Its totient is φ = 9241322977280.

The previous prime is 18482645954791. The next prime is 18482645954833. The reversal of 18482645954816 is 61845954628481.

It can be written as a sum of positive squares in only one way, i.e., 18456303366400 + 26342588416 = 4296080^2 + 162304^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18482645954816.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36098917625 + ... + 36098918136.

Almost surely, 2^{18482645954816} is an apocalyptic number.

18482645954816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18482645954816 is a deficient number, since it is larger than the sum of its proper divisors (18410448119566).

18482645954816 is an frugal number, since it uses more digits than its factorization.

18482645954816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72197835777 (or 72197835763 counting only the distinct ones).

The product of its digits is 530841600, while the sum is 71.

The spelling of 18482645954816 in words is "eighteen trillion, four hundred eighty-two billion, six hundred forty-five million, nine hundred fifty-four thousand, eight hundred sixteen".