216606333653 has 8 divisors (see below), whose sum is σ = 218271382560. Its totient is φ = 214941460240.

The previous prime is 216606333649. The next prime is 216606333679. The reversal of 216606333653 is 356333606612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216606333653 - 2² = 216606333649 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216606333353) 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 in 7 ways as a sum of consecutive naturals, for example, 3573626 + ... + 3633732.

It is an arithmetic number, because the mean of its divisors is an integer number (27283922820).

Almost surely, 2^216606333653 is an apocalyptic number.

It is an amenable number.

216606333653 is a deficient number, since it is larger than the sum of its proper divisors (1665048907).

216606333653 is a wasteful number, since it uses less digits than its factorization.

216606333653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87747.

The product of its (nonzero) digits is 1049760, while the sum is 44.

The spelling of 216606333653 in words is "two hundred sixteen billion, six hundred six million, three hundred thirty-three thousand, six hundred fifty-three".