18058899456 has 520 divisors, whose sum is σ = 59942393280. Its totient is φ = 5382733824.

The previous prime is 18058899367. The next prime is 18058899473. The reversal of 18058899456 is 65499885081.

18058899456 is a `hidden beast` number, since 1 + 8 + 0 + 588 + 9 + 9 + 45 + 6 = 666.

It is a super-2 number, since 2×18058899456² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18058899393 and 18058899402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 228593625 + ... + 228593703.

Almost surely, 2^18058899456 is an apocalyptic number.

18058899456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18058899456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29971196640).

18058899456 is an abundant number, since it is smaller than the sum of its proper divisors (41883493824).

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

18058899456 is an equidigital number, since it uses as much as digits as its factorization.

18058899456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 63.

The spelling of 18058899456 in words is "eighteen billion, fifty-eight million, eight hundred ninety-nine thousand, four hundred fifty-six".