18243653255480 has 32 divisors (see below), whose sum is σ = 41050977744240. Its totient is φ = 7296971005440.

The previous prime is 18243653255473. The next prime is 18243653255491. The reversal of 18243653255480 is 8455235634281.

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, 14718689 + ... + 15909968.

Almost surely, 2^{18243653255480} is an apocalyptic number.

18243653255480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18243653255480 is an abundant number, since it is smaller than the sum of its proper divisors (22807324488760).

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

18243653255480 is a wasteful number, since it uses less digits than its factorization.

18243653255480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30643559 (or 30643555 counting only the distinct ones).

The product of its (nonzero) digits is 27648000, while the sum is 56.

The spelling of 18243653255480 in words is "eighteen trillion, two hundred forty-three billion, six hundred fifty-three million, two hundred fifty-five thousand, four hundred eighty".