16670545447225 has 24 divisors (see below), whose sum is σ = 21889035762048. Its totient is φ = 12551028153600.

The previous prime is 16670545447183. The next prime is 16670545447229. The reversal of 16670545447225 is 52274454507661.

It is a happy number.

16670545447225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16670545447225 - 2⁷ = 16670545447097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16670545447225.

It is not an unprimeable number, because it can be changed into a prime (16670545447229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4460172 + ... + 7296178.

It is an arithmetic number, because the mean of its divisors is an integer number (912043156752).

Almost surely, 2^{16670545447225} is an apocalyptic number.

It is an amenable number.

16670545447225 is a deficient number, since it is larger than the sum of its proper divisors (5218490314823).

16670545447225 is a wasteful number, since it uses less digits than its factorization.

16670545447225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849865 (or 2849860 counting only the distinct ones).

The product of its (nonzero) digits is 56448000, while the sum is 58.

The spelling of 16670545447225 in words is "sixteen trillion, six hundred seventy billion, five hundred forty-five million, four hundred forty-seven thousand, two hundred twenty-five".