216322601 has 16 divisors (see below), whose sum is σ = 242923968. Its totient is φ = 190924800.

The previous prime is 216322597. The next prime is 216322669. The reversal of 216322601 is 106223612.

It is not a de Polignac number, because 216322601 - 2² = 216322597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216328601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101321 + ... + 103433.

It is an arithmetic number, because the mean of its divisors is an integer number (15182748).

Almost surely, 2^216322601 is an apocalyptic number.

It is an amenable number.

216322601 is a deficient number, since it is larger than the sum of its proper divisors (26601367).

216322601 is a wasteful number, since it uses less digits than its factorization.

216322601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 216322601 is about 14707.9094707576. The cubic root of 216322601 is about 600.2985560455.

The spelling of 216322601 in words is "two hundred sixteen million, three hundred twenty-two thousand, six hundred one".