18161282998 has 8 divisors (see below), whose sum is σ = 27246023280. Its totient is φ = 9079275240.

The previous prime is 18161282989. The next prime is 18161283137. The reversal of 18161282998 is 89928216181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666433 + ... + 693148.

It is an arithmetic number, because the mean of its divisors is an integer number (3405752910).

Almost surely, 2^18161282998 is an apocalyptic number.

18161282998 is a deficient number, since it is larger than the sum of its proper divisors (9084740282).

18161282998 is a wasteful number, since it uses less digits than its factorization.

18161282998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366262.

The product of its digits is 995328, while the sum is 55.

The spelling of 18161282998 in words is "eighteen billion, one hundred sixty-one million, two hundred eighty-two thousand, nine hundred ninety-eight".