216330536604 has 576 divisors, whose sum is σ = 688214016000. Its totient is φ = 51429095424.

The previous prime is 216330536533. The next prime is 216330536627. The reversal of 216330536604 is 406635033612.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1451882722 + ... + 1451882870.

It is an arithmetic number, because the mean of its divisors is an integer number (1194816000).

Almost surely, 2^216330536604 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 216330536604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344107008000).

216330536604 is an abundant number, since it is smaller than the sum of its proper divisors (471883479396).

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

216330536604 is a wasteful number, since it uses less digits than its factorization.

216330536604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 39.

The spelling of 216330536604 in words is "two hundred sixteen billion, three hundred thirty million, five hundred thirty-six thousand, six hundred four".