33198562216818 has 48 divisors (see below), whose sum is σ = 72233489577600. Its totient is φ = 11019533222880.

The previous prime is 33198562216801. The next prime is 33198562216861. The reversal of 33198562216818 is 81861226589133.

33198562216818 is a `hidden beast` number, since 3 + 3 + 1 + 9 + 8 + 562 + 2 + 1 + 68 + 1 + 8 = 666.

It is a super-2 number, since 2×33198562216818² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158118348 + ... + 158328168.

It is an arithmetic number, because the mean of its divisors is an integer number (1504864366200).

Almost surely, 2^{33198562216818} is an apocalyptic number.

33198562216818 is an abundant number, since it is smaller than the sum of its proper divisors (39034927360782).

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

33198562216818 is a wasteful number, since it uses less digits than its factorization.

33198562216818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246847 (or 246844 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 63.

The spelling of 33198562216818 in words is "thirty-three trillion, one hundred ninety-eight billion, five hundred sixty-two million, two hundred sixteen thousand, eight hundred eighteen".