18360363636 has 96 divisors (see below), whose sum is σ = 49006742400. Its totient is φ = 6016221216.

The previous prime is 18360363589. The next prime is 18360363649. The reversal of 18360363636 is 63636306381.

18360363636 is a `hidden beast` number, since 1 + 8 + 3 + 6 + 0 + 3 + 6 + 3 + 636 = 666.

It is a super-2 number, since 2×18360363636² (a number of 21 digits) contains 22 as substring.

18360363636 is a modest number, since divided by 363636 gives 18360 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 18360363591 and 18360363600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 498346 + ... + 533918.

It is an arithmetic number, because the mean of its divisors is an integer number (510486900).

Almost surely, 2^18360363636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18360363636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24503371200).

18360363636 is an abundant number, since it is smaller than the sum of its proper divisors (30646378764).

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

18360363636 is an equidigital number, since it uses as much as digits as its factorization.

18360363636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35657 (or 35637 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 45.

The spelling of 18360363636 in words is "eighteen billion, three hundred sixty million, three hundred sixty-three thousand, six hundred thirty-six".