216333166104 has 192 divisors, whose sum is σ = 647751686400. Its totient is φ = 64677139200.

The previous prime is 216333166073. The next prime is 216333166129. The reversal of 216333166104 is 401661333612.

216333166104 is a `hidden beast` number, since 2 + 1 + 6 + 3 + 3 + 31 + 6 + 610 + 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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60409594 + ... + 60413174.

It is an arithmetic number, because the mean of its divisors is an integer number (3373706700).

Almost surely, 2^216333166104 is an apocalyptic number.

216333166104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216333166104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323875843200).

216333166104 is an abundant number, since it is smaller than the sum of its proper divisors (431418520296).

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

216333166104 is a wasteful number, since it uses less digits than its factorization.

216333166104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606 (or 4599 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

Adding to 216333166104 its reverse (401661333612), we get a palindrome (617994499716).

The spelling of 216333166104 in words is "two hundred sixteen billion, three hundred thirty-three million, one hundred sixty-six thousand, one hundred four".