13665629625 has 16 divisors (see below), whose sum is σ = 22739608320. Its totient is φ = 7288335600.

The previous prime is 13665629533. The next prime is 13665629633. The reversal of 13665629625 is 52692656631.

It is a happy number.

It is not a de Polignac number, because 13665629625 - 2²¹ = 13663532473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18220465 + ... + 18221214.

It is an arithmetic number, because the mean of its divisors is an integer number (1421225520).

Almost surely, 2^13665629625 is an apocalyptic number.

13665629625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13665629625 is a deficient number, since it is larger than the sum of its proper divisors (9073978695).

13665629625 is an equidigital number, since it uses as much as digits as its factorization.

13665629625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36441697 (or 36441687 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 51.

The spelling of 13665629625 in words is "thirteen billion, six hundred sixty-five million, six hundred twenty-nine thousand, six hundred twenty-five".