6446530356446 has 16 divisors (see below), whose sum is σ = 9690481253376. Its totient is φ = 3216371073336.

The previous prime is 6446530356421. The next prime is 6446530356449.

6446530356446 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6446530356391 and 6446530356400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6446530356449) 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, 11339435 + ... + 11894361.

It is an arithmetic number, because the mean of its divisors is an integer number (605655078336).

Almost surely, 2^{6446530356446} is an apocalyptic number.

6446530356446 is a deficient number, since it is larger than the sum of its proper divisors (3243950896930).

6446530356446 is a wasteful number, since it uses less digits than its factorization.

6446530356446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567343.

The product of its (nonzero) digits is 74649600, while the sum is 56.

The spelling of 6446530356446 in words is "six trillion, four hundred forty-six billion, five hundred thirty million, three hundred fifty-six thousand, four hundred forty-six".