216151894120 has 256 divisors, whose sum is σ = 543262464000. Its totient is φ = 77031668736.

The previous prime is 216151894103. The next prime is 216151894121. The reversal of 216151894120 is 21498151612.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (216151894121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 304868326 + ... + 304869034.

It is an arithmetic number, because the mean of its divisors is an integer number (2122119000).

Almost surely, 2^216151894120 is an apocalyptic number.

216151894120 is a gapful number since it is divisible by the number (20) 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 216151894120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271631232000).

216151894120 is an abundant number, since it is smaller than the sum of its proper divisors (327110569880).

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

216151894120 is a wasteful number, since it uses less digits than its factorization.

216151894120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 40.

The spelling of 216151894120 in words is "two hundred sixteen billion, one hundred fifty-one million, eight hundred ninety-four thousand, one hundred twenty".