216652322069 has 2 divisors, whose sum is σ = 216652322070. Its totient is φ = 216652322068.

The previous prime is 216652322059. The next prime is 216652322101. The reversal of 216652322069 is 960223256612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127833421444 + 88818900625 = 357538^2 + 298025^2 .

It is a cyclic number.

It is not a de Polignac number, because 216652322069 - 2⁸ = 216652321813 is a prime.

It is a super-2 number, since 2×216652322069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216652322059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108326161034 + 108326161035.

It is an arithmetic number, because the mean of its divisors is an integer number (108326161035).

Almost surely, 2^216652322069 is an apocalyptic number.

It is an amenable number.

216652322069 is a deficient number, since it is larger than the sum of its proper divisors (1).

216652322069 is an equidigital number, since it uses as much as digits as its factorization.

216652322069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 216652322069 in words is "two hundred sixteen billion, six hundred fifty-two million, three hundred twenty-two thousand, sixty-nine".