21966032203267 has 2 divisors, whose sum is σ = 21966032203268. Its totient is φ = 21966032203266.

The previous prime is 21966032203231. The next prime is 21966032203277. The reversal of 21966032203267 is 76230223066912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21966032203267 - 2¹⁵ = 21966032170499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21966032203267.

It is not a weakly prime, because it can be changed into another prime (21966032203277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10983016101633 + 10983016101634.

It is an arithmetic number, because the mean of its divisors is an integer number (10983016101634).

Almost surely, 2^{21966032203267} is an apocalyptic number.

21966032203267 is a deficient number, since it is larger than the sum of its proper divisors (1).

21966032203267 is an equidigital number, since it uses as much as digits as its factorization.

21966032203267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 49.

The spelling of 21966032203267 in words is "twenty-one trillion, nine hundred sixty-six billion, thirty-two million, two hundred three thousand, two hundred sixty-seven".