216332386097 has 2 divisors, whose sum is σ = 216332386098. Its totient is φ = 216332386096.

The previous prime is 216332385967. The next prime is 216332386147. The reversal of 216332386097 is 790683233612.

It is a happy number.

It is an a-pointer prime, because the next prime (216332386147) can be obtained adding 216332386097 to its sum of digits (50).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133143982321 + 83188403776 = 364889^2 + 288424^2 .

It is a cyclic number.

It is not a de Polignac number, because 216332386097 - 2²⁶ = 216265277233 is a prime.

It is not a weakly prime, because it can be changed into another prime (216332386297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108166193048 + 108166193049.

It is an arithmetic number, because the mean of its divisors is an integer number (108166193049).

Almost surely, 2^216332386097 is an apocalyptic number.

It is an amenable number.

216332386097 is a deficient number, since it is larger than the sum of its proper divisors (1).

216332386097 is an equidigital number, since it uses as much as digits as its factorization.

216332386097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 50.

The spelling of 216332386097 in words is "two hundred sixteen billion, three hundred thirty-two million, three hundred eighty-six thousand, ninety-seven".