18163280382 has 16 divisors (see below), whose sum is σ = 39120911760. Its totient is φ = 5588701632.

The previous prime is 18163280363. The next prime is 18163280383. The reversal of 18163280382 is 28308236181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18163280383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116431207 + ... + 116431362.

It is an arithmetic number, because the mean of its divisors is an integer number (2445056985).

Almost surely, 2^18163280382 is an apocalyptic number.

18163280382 is an abundant number, since it is smaller than the sum of its proper divisors (20957631378).

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

18163280382 is a wasteful number, since it uses less digits than its factorization.

18163280382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232862587.

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 18163280382 in words is "eighteen billion, one hundred sixty-three million, two hundred eighty thousand, three hundred eighty-two".