15671660556172 has 12 divisors (see below), whose sum is σ = 27634760218296. Its totient is φ = 7776014779520.

The previous prime is 15671660556163. The next prime is 15671660556173. The reversal of 15671660556172 is 27165506617651.

15671660556172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15671660556173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14953874053 + ... + 14953875100.

It is an arithmetic number, because the mean of its divisors is an integer number (2302896684858).

Almost surely, 2^{15671660556172} is an apocalyptic number.

It is an amenable number.

15671660556172 is a deficient number, since it is larger than the sum of its proper divisors (11963099662124).

15671660556172 is a wasteful number, since it uses less digits than its factorization.

15671660556172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29907749288 (or 29907749286 counting only the distinct ones).

The product of its (nonzero) digits is 15876000, while the sum is 58.

The spelling of 15671660556172 in words is "fifteen trillion, six hundred seventy-one billion, six hundred sixty million, five hundred fifty-six thousand, one hundred seventy-two".