18005602140216 has 96 divisors (see below), whose sum is σ = 49249309590000. Its totient is φ = 5942538680832.

The previous prime is 18005602140191. The next prime is 18005602140367. The reversal of 18005602140216 is 61204120650081.

It is a happy number.

18005602140216 is a `hidden beast` number, since 1 + 8 + 0 + 0 + 5 + 602 + 1 + 40 + 2 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 676755 + ... + 6038973.

Almost surely, 2^{18005602140216} 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 18005602140216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24624654795000).

18005602140216 is an abundant number, since it is smaller than the sum of its proper divisors (31243707449784).

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

18005602140216 is a wasteful number, since it uses less digits than its factorization.

18005602140216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5362693 (or 5362686 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

Adding to 18005602140216 its reverse (61204120650081), we get a palindrome (79209722790297).

The spelling of 18005602140216 in words is "eighteen trillion, five billion, six hundred two million, one hundred forty thousand, two hundred sixteen".