13646044021146 has 32 divisors (see below), whose sum is σ = 27357798325248. Its totient is φ = 4537730326080.

The previous prime is 13646044021133. The next prime is 13646044021171. The reversal of 13646044021146 is 64112044064631.

It is a happy number.

13646044021146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13646044021098 and 13646044021107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101611975 + ... + 101746181.

It is an arithmetic number, because the mean of its divisors is an integer number (854931197664).

Almost surely, 2^{13646044021146} is an apocalyptic number.

13646044021146 is an abundant number, since it is smaller than the sum of its proper divisors (13711754304102).

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

13646044021146 is a wasteful number, since it uses less digits than its factorization.

13646044021146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174886.

The product of its (nonzero) digits is 331776, while the sum is 42.

Adding to 13646044021146 its reverse (64112044064631), we get a palindrome (77758088085777).

The spelling of 13646044021146 in words is "thirteen trillion, six hundred forty-six billion, forty-four million, twenty-one thousand, one hundred forty-six".