216622620204 has 48 divisors (see below), whose sum is σ = 508518506496. Its totient is φ = 71770204800.

The previous prime is 216622620161. The next prime is 216622620211. The reversal of 216622620204 is 402026226612.

It is a super-3 number, since 3×216622620204³ (a number of 35 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 2783064 + ... + 2859840.

It is an arithmetic number, because the mean of its divisors is an integer number (10594135552).

Almost surely, 2^216622620204 is an apocalyptic number.

It is an amenable number.

216622620204 is an abundant number, since it is smaller than the sum of its proper divisors (291895886292).

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

216622620204 is a wasteful number, since it uses less digits than its factorization.

216622620204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78206 (or 78204 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 216622620204 its reverse (402026226612), we get a palindrome (618648846816).

The spelling of 216622620204 in words is "two hundred sixteen billion, six hundred twenty-two million, six hundred twenty thousand, two hundred four".