216552443603 has 2 divisors, whose sum is σ = 216552443604. Its totient is φ = 216552443602.

The previous prime is 216552443581. The next prime is 216552443677. The reversal of 216552443603 is 306344255612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216552443603 - 2¹⁴ = 216552427219 is a prime.

It is not a weakly prime, because it can be changed into another prime (216552446603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108276221801 + 108276221802.

It is an arithmetic number, because the mean of its divisors is an integer number (108276221802).

Almost surely, 2^216552443603 is an apocalyptic number.

216552443603 is a deficient number, since it is larger than the sum of its proper divisors (1).

216552443603 is an equidigital number, since it uses as much as digits as its factorization.

216552443603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 216552443603 in words is "two hundred sixteen billion, five hundred fifty-two million, four hundred forty-three thousand, six hundred three".