13661704925 has 12 divisors (see below), whose sum is σ = 18480561216. Its totient is φ = 9935785200.

The previous prime is 13661704921. The next prime is 13661704949. The reversal of 13661704925 is 52940716631.

It is not a de Polignac number, because 13661704925 - 2² = 13661704921 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 (13661704921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24839189 + ... + 24839738.

It is an arithmetic number, because the mean of its divisors is an integer number (1540046768).

Almost surely, 2^13661704925 is an apocalyptic number.

It is an amenable number.

13661704925 is a deficient number, since it is larger than the sum of its proper divisors (4818856291).

13661704925 is a wasteful number, since it uses less digits than its factorization.

13661704925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49678948 (or 49678943 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 13661704925 in words is "thirteen billion, six hundred sixty-one million, seven hundred four thousand, nine hundred twenty-five".