216686881063007 has 2 divisors, whose sum is σ = 216686881063008. Its totient is φ = 216686881063006.

The previous prime is 216686881062997. The next prime is 216686881063027. The reversal of 216686881063007 is 700360188686612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216686881063007 - 2¹² = 216686881058911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216686881063027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108343440531503 + 108343440531504.

It is an arithmetic number, because the mean of its divisors is an integer number (108343440531504).

Almost surely, 2^{216686881063007} is an apocalyptic number.

216686881063007 is a deficient number, since it is larger than the sum of its proper divisors (1).

216686881063007 is an equidigital number, since it uses as much as digits as its factorization.

216686881063007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27869184, while the sum is 62.

The spelling of 216686881063007 in words is "two hundred sixteen trillion, six hundred eighty-six billion, eight hundred eighty-one million, sixty-three thousand, seven".