216868059536 has 40 divisors (see below), whose sum is σ = 434066265600. Its totient is φ = 104856284160.

The previous prime is 216868059497. The next prime is 216868059553. The reversal of 216868059536 is 635950868612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488480 + ... + 819968.

It is an arithmetic number, because the mean of its divisors is an integer number (10851656640).

Almost surely, 2^216868059536 is an apocalyptic number.

It is an amenable number.

216868059536 is an abundant number, since it is smaller than the sum of its proper divisors (217198206064).

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

216868059536 is a wasteful number, since it uses less digits than its factorization.

216868059536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332847 (or 332841 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 59.

The spelling of 216868059536 in words is "two hundred sixteen billion, eight hundred sixty-eight million, fifty-nine thousand, five hundred thirty-six".