216912338082 has 96 divisors (see below), whose sum is σ = 518812729344. Its totient is φ = 64951740000.

The previous prime is 216912338077. The next prime is 216912338101. The reversal of 216912338082 is 280833219612.

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, 6294463 + ... + 6328829.

It is an arithmetic number, because the mean of its divisors is an integer number (5404299264).

Almost surely, 2^216912338082 is an apocalyptic number.

216912338082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 216912338082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259406364672).

216912338082 is an abundant number, since it is smaller than the sum of its proper divisors (301900391262).

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

216912338082 is a wasteful number, since it uses less digits than its factorization.

216912338082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34764 (or 34761 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 216912338082 in words is "two hundred sixteen billion, nine hundred twelve million, three hundred thirty-eight thousand, eighty-two".