216896055696 has 160 divisors (see below), whose sum is σ = 625159392000. Its totient is φ = 71998958592.

The previous prime is 216896055689. The next prime is 216896055697. The reversal of 216896055696 is 696550698612.

216896055696 is a `hidden beast` number, since 2 + 1 + 6 + 8 + 9 + 60 + 5 + 569 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (216896055697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192112860 + ... + 192113988.

It is an arithmetic number, because the mean of its divisors is an integer number (3907246200).

Almost surely, 2^216896055696 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 216896055696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312579696000).

216896055696 is an abundant number, since it is smaller than the sum of its proper divisors (408263336304).

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

216896055696 is a wasteful number, since it uses less digits than its factorization.

216896055696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2598 (or 2586 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 63.

The spelling of 216896055696 in words is "two hundred sixteen billion, eight hundred ninety-six million, fifty-five thousand, six hundred ninety-six".