4165664225546 has 16 divisors (see below), whose sum is σ = 6421730805600. Its totient is φ = 2025510329808.

The previous prime is 4165664225543. The next prime is 4165664225587. The reversal of 4165664225546 is 6455224665614.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4165664225491 and 4165664225500.

It is not an unprimeable number, because it can be changed into a prime (4165664225543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105740036 + ... + 105779423.

It is an arithmetic number, because the mean of its divisors is an integer number (401358175350).

Almost surely, 2^{4165664225546} is an apocalyptic number.

4165664225546 is a deficient number, since it is larger than the sum of its proper divisors (2256066580054).

4165664225546 is a wasteful number, since it uses less digits than its factorization.

4165664225546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211519733.

The product of its digits is 41472000, while the sum is 56.

The spelling of 4165664225546 in words is "four trillion, one hundred sixty-five billion, six hundred sixty-four million, two hundred twenty-five thousand, five hundred forty-six".