14665139636 has 18 divisors (see below), whose sum is σ = 29854034658. Its totient is φ = 6285059760.

The previous prime is 14665139633. The next prime is 14665139677. The reversal of 14665139636 is 63693156641.

It can be written as a sum of positive squares in only one way, i.e., 14341499536 + 323640100 = 119756^2 + 17990^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14665139633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37410875 + ... + 37411266.

It is an arithmetic number, because the mean of its divisors is an integer number (1658557481).

Almost surely, 2^14665139636 is an apocalyptic number.

It is an amenable number.

14665139636 is an abundant number, since it is smaller than the sum of its proper divisors (15188895022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14665139636 is a wasteful number, since it uses less digits than its factorization.

14665139636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74822159 (or 74822150 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 50.

The spelling of 14665139636 in words is "fourteen billion, six hundred sixty-five million, one hundred thirty-nine thousand, six hundred thirty-six".