216545603047 has 2 divisors, whose sum is σ = 216545603048. Its totient is φ = 216545603046.

The previous prime is 216545603017. The next prime is 216545603089. The reversal of 216545603047 is 740306545612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216545603047 - 2³¹ = 214398119399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216545602994 and 216545603012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216545603017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108272801523 + 108272801524.

It is an arithmetic number, because the mean of its divisors is an integer number (108272801524).

Almost surely, 2^216545603047 is an apocalyptic number.

216545603047 is a deficient number, since it is larger than the sum of its proper divisors (1).

216545603047 is an equidigital number, since it uses as much as digits as its factorization.

216545603047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 216545603047 in words is "two hundred sixteen billion, five hundred forty-five million, six hundred three thousand, forty-seven".