447448166503 has 6 divisors (see below), whose sum is σ = 484514878704. Its totient is φ = 413029076616.

The previous prime is 447448166497. The next prime is 447448166531. The reversal of 447448166503 is 305661844744.

It is not a de Polignac number, because 447448166503 - 2⁹ = 447448165991 is a prime.

It is a super-2 number, since 2×447448166503² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447448166533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1323810975 + ... + 1323811312.

It is an arithmetic number, because the mean of its divisors is an integer number (80752479784).

Almost surely, 2^447448166503 is an apocalyptic number.

447448166503 is a deficient number, since it is larger than the sum of its proper divisors (37066712201).

447448166503 is a wasteful number, since it uses less digits than its factorization.

447448166503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647622313 (or 2647622300 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 52.

The spelling of 447448166503 in words is "four hundred forty-seven billion, four hundred forty-eight million, one hundred sixty-six thousand, five hundred three".