164216011 has 4 divisors (see below), whose sum is σ = 168035032. Its totient is φ = 160396992.

The previous prime is 164215991. The next prime is 164216071. The reversal of 164216011 is 110612461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164216011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164216071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1909446 + ... + 1909531.

It is an arithmetic number, because the mean of its divisors is an integer number (42008758).

Almost surely, 2^164216011 is an apocalyptic number.

164216011 is a deficient number, since it is larger than the sum of its proper divisors (3819021).

164216011 is an equidigital number, since it uses as much as digits as its factorization.

164216011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819020.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 164216011 is about 12814.6795121845. The cubic root of 164216011 is about 547.6105832245.

Adding to 164216011 its reverse (110612461), we get a palindrome (274828472).

The spelling of 164216011 in words is "one hundred sixty-four million, two hundred sixteen thousand, eleven".