216709883056 has 10 divisors (see below), whose sum is σ = 419875398452. Its totient is φ = 108354941520.

The previous prime is 216709883051. The next prime is 216709883057. The reversal of 216709883056 is 650388907612.

It is a junction number, because it is equal to n+sod(n) for n = 216709882988 and 216709883006.

It is not an unprimeable number, because it can be changed into a prime (216709883051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6772183830 + ... + 6772183861.

Almost surely, 2^216709883056 is an apocalyptic number.

It is an amenable number.

216709883056 is a deficient number, since it is larger than the sum of its proper divisors (203165515396).

216709883056 is a wasteful number, since it uses less digits than its factorization.

216709883056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13544367699 (or 13544367693 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 216709883056 in words is "two hundred sixteen billion, seven hundred nine million, eight hundred eighty-three thousand, fifty-six".