999164911 has 2 divisors, whose sum is σ = 999164912. Its totient is φ = 999164910.

The previous prime is 999164879. The next prime is 999164977. The reversal of 999164911 is 119461999.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999164911 - 2⁵ = 999164879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999164011) 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, 499582455 + 499582456.

It is an arithmetic number, because the mean of its divisors is an integer number (499582456).

Almost surely, 2^999164911 is an apocalyptic number.

999164911 is a deficient number, since it is larger than the sum of its proper divisors (1).

999164911 is an equidigital number, since it uses as much as digits as its factorization.

999164911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 49.

The square root of 999164911 is about 31609.5699274761. The cubic root of 999164911 is about 999.7215594781.

The spelling of 999164911 in words is "nine hundred ninety-nine million, one hundred sixty-four thousand, nine hundred eleven".