999226666622999 has 2 divisors, whose sum is σ = 999226666623000. Its totient is φ = 999226666622998.

The previous prime is 999226666622963. The next prime is 999226666623013.

999226666622999 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999226666622999 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999226666622959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499613333311499 + 499613333311500.

It is an arithmetic number, because the mean of its divisors is an integer number (499613333311500).

Almost surely, 2^{999226666622999} is an apocalyptic number.

999226666622999 is a deficient number, since it is larger than the sum of its proper divisors (1).

999226666622999 is an equidigital number, since it uses as much as digits as its factorization.

999226666622999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66119763456, while the sum is 92.

The spelling of 999226666622999 in words is "nine hundred ninety-nine trillion, two hundred twenty-six billion, six hundred sixty-six million, six hundred twenty-two thousand, nine hundred ninety-nine".