16464440207 has 2 divisors, whose sum is σ = 16464440208. Its totient is φ = 16464440206.

The previous prime is 16464440203. The next prime is 16464440219. The reversal of 16464440207 is 70204446461.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (70204446461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16464440207 - 2² = 16464440203 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16464440203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8232220103 + 8232220104.

It is an arithmetic number, because the mean of its divisors is an integer number (8232220104).

Almost surely, 2^16464440207 is an apocalyptic number.

16464440207 is a deficient number, since it is larger than the sum of its proper divisors (1).

16464440207 is an equidigital number, since it uses as much as digits as its factorization.

16464440207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 38.

Adding to 16464440207 its reverse (70204446461), we get a palindrome (86668886668).

The spelling of 16464440207 in words is "sixteen billion, four hundred sixty-four million, four hundred forty thousand, two hundred seven".