216022123598256 has 160 divisors (see below), whose sum is σ = 630245128049600. Its totient is φ = 70825054648320.

The previous prime is 216022123598249. The next prime is 216022123598291. The reversal of 216022123598256 is 652895321220612.

216022123598256 is a `hidden beast` number, since 2 + 1 + 6 + 0 + 2 + 2 + 1 + 23 + 598 + 25 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1288239090 + ... + 1288406766.

It is an arithmetic number, because the mean of its divisors is an integer number (3939032050310).

Almost surely, 2^{216022123598256} 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 216022123598256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315122564024800).

216022123598256 is an abundant number, since it is smaller than the sum of its proper divisors (414223004451344).

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

216022123598256 is a wasteful number, since it uses less digits than its factorization.

216022123598256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216644 (or 216632 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 216022123598256 in words is "two hundred sixteen trillion, twenty-two billion, one hundred twenty-three million, five hundred ninety-eight thousand, two hundred fifty-six".