216333156601 has 2 divisors, whose sum is σ = 216333156602. Its totient is φ = 216333156600.

The previous prime is 216333156587. The next prime is 216333156619. The reversal of 216333156601 is 106651333612.

It is a happy number.

216333156601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111638847376 + 104694309225 = 334124^2 + 323565^2 .

It is a cyclic number.

It is not a de Polignac number, because 216333156601 - 2⁹ = 216333156089 is a prime.

It is not a weakly prime, because it can be changed into another prime (216333156661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108166578300 + 108166578301.

It is an arithmetic number, because the mean of its divisors is an integer number (108166578301).

Almost surely, 2^216333156601 is an apocalyptic number.

It is an amenable number.

216333156601 is a deficient number, since it is larger than the sum of its proper divisors (1).

216333156601 is an equidigital number, since it uses as much as digits as its factorization.

216333156601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 216333156601 in words is "two hundred sixteen billion, three hundred thirty-three million, one hundred fifty-six thousand, six hundred one".