16664220011 has 8 divisors (see below), whose sum is σ = 16782933024. Its totient is φ = 16545925120.

The previous prime is 16664220007. The next prime is 16664220019. The reversal of 16664220011 is 11002246661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16664220011 - 2² = 16664220007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16664220019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24320 + ... + 184173.

It is an arithmetic number, because the mean of its divisors is an integer number (2097866628).

Almost surely, 2^16664220011 is an apocalyptic number.

16664220011 is a deficient number, since it is larger than the sum of its proper divisors (118713013).

16664220011 is a wasteful number, since it uses less digits than its factorization.

16664220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209061.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 16664220011 its reverse (11002246661), we get a palindrome (27666466672).

The spelling of 16664220011 in words is "sixteen billion, six hundred sixty-four million, two hundred twenty thousand, eleven".