42216343664025 has 12 divisors (see below), whose sum is σ = 69797688191312. Its totient is φ = 22515383287440.

The previous prime is 42216343664003. The next prime is 42216343664029. The reversal of 42216343664025 is 52046634361224.

It is not a de Polignac number, because 42216343664025 - 2¹⁰ = 42216343663001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42216343664029) 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, 281442291019 + ... + 281442291168.

Almost surely, 2^{42216343664025} is an apocalyptic number.

It is an amenable number.

42216343664025 is a deficient number, since it is larger than the sum of its proper divisors (27581344527287).

42216343664025 is a wasteful number, since it uses less digits than its factorization.

42216343664025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562884582200 (or 562884582195 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 48.

The spelling of 42216343664025 in words is "forty-two trillion, two hundred sixteen billion, three hundred forty-three million, six hundred sixty-four thousand, twenty-five".