216802478592 has 480 divisors, whose sum is σ = 797046307200. Its totient is φ = 55228760064.

The previous prime is 216802478567. The next prime is 216802478657. The reversal of 216802478592 is 295874208612.

216802478592 is a `hidden beast` number, since 2 + 1 + 6 + 8 + 0 + 2 + 47 + 8 + 592 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10408284 + ... + 10429092.

It is an arithmetic number, because the mean of its divisors is an integer number (1660513140).

Almost surely, 2^216802478592 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 216802478592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398523153600).

216802478592 is an abundant number, since it is smaller than the sum of its proper divisors (580243828608).

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

216802478592 is a wasteful number, since it uses less digits than its factorization.

216802478592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20876 (or 20857 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 216802478592 in words is "two hundred sixteen billion, eight hundred two million, four hundred seventy-eight thousand, five hundred ninety-two".