14001639165 has 24 divisors (see below), whose sum is σ = 24282343800. Its totient is φ = 7463591424.

The previous prime is 14001639151. The next prime is 14001639167. The reversal of 14001639165 is 56193610041.

14001639165 is a `hidden beast` number, since 1 + 4 + 0 + 0 + 1 + 639 + 16 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3238406649 + 10763232516 = 56907^2 + 103746^2 .

It is not a de Polignac number, because 14001639165 - 2¹² = 14001635069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14001639167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4761 + ... + 167409.

It is an arithmetic number, because the mean of its divisors is an integer number (1011764325).

Almost surely, 2^14001639165 is an apocalyptic number.

14001639165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

14001639165 is a deficient number, since it is larger than the sum of its proper divisors (10280704635).

14001639165 is a wasteful number, since it uses less digits than its factorization.

14001639165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164573 (or 164570 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 14001639165 in words is "fourteen billion, one million, six hundred thirty-nine thousand, one hundred sixty-five".