20218280322204 has 72 divisors (see below), whose sum is σ = 52883905620000. Its totient is φ = 6505277111424.

The previous prime is 20218280322193. The next prime is 20218280322239. The reversal of 20218280322204 is 40222308281202.

20218280322204 is a `hidden beast` number, since 20 + 2 + 18 + 280 + 322 + 20 + 4 = 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 (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1261497 + ... + 6482895.

Almost surely, 2^{20218280322204} is an apocalyptic number.

It is an amenable number.

20218280322204 is an abundant number, since it is smaller than the sum of its proper divisors (32665625297796).

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

20218280322204 is a wasteful number, since it uses less digits than its factorization.

20218280322204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5225147 (or 5225142 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The spelling of 20218280322204 in words is "twenty trillion, two hundred eighteen billion, two hundred eighty million, three hundred twenty-two thousand, two hundred four".