216039469228128 has 576 divisors, whose sum is σ = 785114613803520. Its totient is φ = 56906862170112.

The previous prime is 216039469228127. The next prime is 216039469228147. The reversal of 216039469228128 is 821822964930612.

216039469228128 is a `hidden beast` number, since 2 + 1 + 6 + 0 + 394 + 6 + 9 + 228 + 12 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216039469228127) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 572272651 + ... + 572650037.

It is an arithmetic number, because the mean of its divisors is an integer number (1363046204520).

Almost surely, 2^{216039469228128} is an apocalyptic number.

216039469228128 is a gapful number since it is divisible by the number (28) 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 216039469228128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392557306901760).

216039469228128 is an abundant number, since it is smaller than the sum of its proper divisors (569075144575392).

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

216039469228128 is a wasteful number, since it uses less digits than its factorization.

216039469228128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378241 (or 378221 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 216039469228128 in words is "two hundred sixteen trillion, thirty-nine billion, four hundred sixty-nine million, two hundred twenty-eight thousand, one hundred twenty-eight".