216686881063006 has 8 divisors (see below), whose sum is σ = 325380192772320. Its totient is φ = 108226816805568.

The previous prime is 216686881062997. The next prime is 216686881063007. The reversal of 216686881063006 is 600360188686612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216686881063007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58311860646 + ... + 58311864361.

It is an arithmetic number, because the mean of its divisors is an integer number (40672524096540).

Almost surely, 2^{216686881063006} is an apocalyptic number.

216686881063006 is a deficient number, since it is larger than the sum of its proper divisors (108693311709314).

216686881063006 is a wasteful number, since it uses less digits than its factorization.

216686881063006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116623725938.

The product of its (nonzero) digits is 23887872, while the sum is 61.

The spelling of 216686881063006 in words is "two hundred sixteen trillion, six hundred eighty-six billion, eight hundred eighty-one million, sixty-three thousand, six".