165333011 has 2 divisors, whose sum is σ = 165333012. Its totient is φ = 165333010.

The previous prime is 165332987. The next prime is 165333029. The reversal of 165333011 is 110333561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165333011 - 2²² = 161138707 is a prime.

It is a super-2 number, since 2×165333011² = 54670009052652242, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (165338011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82666505 + 82666506.

It is an arithmetic number, because the mean of its divisors is an integer number (82666506).

Almost surely, 2^165333011 is an apocalyptic number.

165333011 is a deficient number, since it is larger than the sum of its proper divisors (1).

165333011 is an equidigital number, since it uses as much as digits as its factorization.

165333011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 165333011 is about 12858.1884804976. The cubic root of 165333011 is about 548.8493973671.

Adding to 165333011 its reverse (110333561), we get a palindrome (275666572).

The spelling of 165333011 in words is "one hundred sixty-five million, three hundred thirty-three thousand, eleven".