13950666438911 has 16 divisors (see below), whose sum is σ = 14796667532448. Its totient is φ = 13107494400000.

The previous prime is 13950666438889. The next prime is 13950666438937. The reversal of 13950666438911 is 11983466605931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13950666438911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13950626438911) 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, 46305461 + ... + 46605761.

It is an arithmetic number, because the mean of its divisors is an integer number (924791720778).

Almost surely, 2^{13950666438911} is an apocalyptic number.

13950666438911 is a deficient number, since it is larger than the sum of its proper divisors (846001093537).

13950666438911 is a wasteful number, since it uses less digits than its factorization.

13950666438911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305002.

The product of its (nonzero) digits is 25194240, while the sum is 62.

The spelling of 13950666438911 in words is "thirteen trillion, nine hundred fifty billion, six hundred sixty-six million, four hundred thirty-eight thousand, nine hundred eleven".