216673433603 has 4 divisors (see below), whose sum is σ = 236371018488. Its totient is φ = 196975848720.

The previous prime is 216673433593. The next prime is 216673433663. The reversal of 216673433603 is 306334376612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216673433603 - 2⁶ = 216673433539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216673433663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9848792426 + ... + 9848792447.

It is an arithmetic number, because the mean of its divisors is an integer number (59092754622).

Almost surely, 2^216673433603 is an apocalyptic number.

216673433603 is a deficient number, since it is larger than the sum of its proper divisors (19697584885).

216673433603 is a wasteful number, since it uses less digits than its factorization.

216673433603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19697584884.

The product of its (nonzero) digits is 979776, while the sum is 44.

The spelling of 216673433603 in words is "two hundred sixteen billion, six hundred seventy-three million, four hundred thirty-three thousand, six hundred three".