18525284016 has 40 divisors (see below), whose sum is σ = 47891123760. Its totient is φ = 6170689536.

The previous prime is 18525284009. The next prime is 18525284027. The reversal of 18525284016 is 61048252581.

It is a super-2 number, since 2×18525284016² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 69325 + ... + 204588.

It is an arithmetic number, because the mean of its divisors is an integer number (1197278094).

Almost surely, 2^18525284016 is an apocalyptic number.

18525284016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18525284016 is an abundant number, since it is smaller than the sum of its proper divisors (29365839744).

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

18525284016 is a wasteful number, since it uses less digits than its factorization.

18525284016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275333 (or 275327 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 18525284016 in words is "eighteen billion, five hundred twenty-five million, two hundred eighty-four thousand, sixteen".