216731513014543 has 2 divisors, whose sum is σ = 216731513014544. Its totient is φ = 216731513014542.

The previous prime is 216731513014411. The next prime is 216731513014547. The reversal of 216731513014543 is 345410315137612.

216731513014543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216731513014543 - 2²⁹ = 216730976143631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216731513014493 and 216731513014502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216731513014547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108365756507271 + 108365756507272.

It is an arithmetic number, because the mean of its divisors is an integer number (108365756507272).

Almost surely, 2^{216731513014543} is an apocalyptic number.

216731513014543 is a deficient number, since it is larger than the sum of its proper divisors (1).

216731513014543 is an equidigital number, since it uses as much as digits as its factorization.

216731513014543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 216731513014543 in words is "two hundred sixteen trillion, seven hundred thirty-one billion, five hundred thirteen million, fourteen thousand, five hundred forty-three".