216731513014411 has 2 divisors, whose sum is σ = 216731513014412. Its totient is φ = 216731513014410.

The previous prime is 216731513014409. The next prime is 216731513014543. The reversal of 216731513014411 is 114410315137612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216731513014411 - 2¹ = 216731513014409 is a prime.

Together with 216731513014409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (216731513074411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108365756507205 + 108365756507206.

It is an arithmetic number, because the mean of its divisors is an integer number (108365756507206).

Almost surely, 2^{216731513014411} is an apocalyptic number.

216731513014411 is a deficient number, since it is larger than the sum of its proper divisors (1).

216731513014411 is an equidigital number, since it uses as much as digits as its factorization.

216731513014411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 216731513014411 in words is "two hundred sixteen trillion, seven hundred thirty-one billion, five hundred thirteen million, fourteen thousand, four hundred eleven".