18155180483 has 8 divisors (see below), whose sum is σ = 19807381440. Its totient is φ = 16503267880.

The previous prime is 18155180441. The next prime is 18155180497. The reversal of 18155180483 is 38408155181.

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

It is not a de Polignac number, because 18155180483 - 2¹² = 18155176387 is a prime.

It is a super-2 number, since 2×18155180483² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18155180383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72116 + ... + 203742.

It is an arithmetic number, because the mean of its divisors is an integer number (2475922680).

Almost surely, 2^18155180483 is an apocalyptic number.

18155180483 is a deficient number, since it is larger than the sum of its proper divisors (1652200957).

18155180483 is a wasteful number, since it uses less digits than its factorization.

18155180483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144177.

The product of its (nonzero) digits is 153600, while the sum is 44.

The spelling of 18155180483 in words is "eighteen billion, one hundred fifty-five million, one hundred eighty thousand, four hundred eighty-three".