445431436216 has 16 divisors (see below), whose sum is σ = 899428861800. Its totient is φ = 205583739744.

The previous prime is 445431436157. The next prime is 445431436223. The reversal of 445431436216 is 612634134544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2141497186 + ... + 2141497393.

Almost surely, 2^445431436216 is an apocalyptic number.

It is an amenable number.

445431436216 is an abundant number, since it is smaller than the sum of its proper divisors (453997425584).

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

445431436216 is a wasteful number, since it uses less digits than its factorization.

445431436216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282994598 (or 4282994594 counting only the distinct ones).

The product of its digits is 829440, while the sum is 43.

The spelling of 445431436216 in words is "four hundred forty-five billion, four hundred thirty-one million, four hundred thirty-six thousand, two hundred sixteen".