18112154922548 has 24 divisors (see below), whose sum is σ = 31711338638280. Its totient is φ = 9051773419520.

The previous prime is 18112154922487. The next prime is 18112154922571. The reversal of 18112154922548 is 84522945121181.

It can be written as a sum of positive squares in 4 ways, for example, as 488514327844 + 17623640594704 = 698938^2 + 4198052^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18112154922548.

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, 77929040 + ... + 78161112.

It is an arithmetic number, because the mean of its divisors is an integer number (1321305776595).

Almost surely, 2^{18112154922548} is an apocalyptic number.

It is an amenable number.

18112154922548 is a deficient number, since it is larger than the sum of its proper divisors (13599183715732).

18112154922548 is a wasteful number, since it uses less digits than its factorization.

18112154922548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241267 (or 241265 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 53.

The spelling of 18112154922548 in words is "eighteen trillion, one hundred twelve billion, one hundred fifty-four million, nine hundred twenty-two thousand, five hundred forty-eight".