14664646641 has 16 divisors (see below), whose sum is σ = 21012035904. Its totient is φ = 9064011264.

The previous prime is 14664646639. The next prime is 14664646663.

14664646641 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 14664646641 - 2¹ = 14664646639 is a prime.

It is a super-2 number, since 2×14664646641² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14664646141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2142420 + ... + 2149253.

It is an arithmetic number, because the mean of its divisors is an integer number (1313252244).

Almost surely, 2^14664646641 is an apocalyptic number.

It is an amenable number.

14664646641 is a deficient number, since it is larger than the sum of its proper divisors (6347389263).

14664646641 is a wasteful number, since it uses less digits than its factorization.

14664646641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291760.

The product of its digits is 1990656, while the sum is 48.

The spelling of 14664646641 in words is "fourteen billion, six hundred sixty-four million, six hundred forty-six thousand, six hundred forty-one".