6446546456446 has 4 divisors (see below), whose sum is σ = 9669819684672. Its totient is φ = 3223273228222.

The previous prime is 6446546456323. The next prime is 6446546456491.

It is a happy number.

6446546456446 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×6446546456446³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611636614110 + ... + 1611636614113.

It is an arithmetic number, because the mean of its divisors is an integer number (2417454921168).

Almost surely, 2^{6446546456446} is an apocalyptic number.

6446546456446 is a deficient number, since it is larger than the sum of its proper divisors (3223273228226).

6446546456446 is a wasteful number, since it uses less digits than its factorization.

6446546456446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223273228225.

The product of its digits is 796262400, while the sum is 64.

The spelling of 6446546456446 in words is "six trillion, four hundred forty-six billion, five hundred forty-six million, four hundred fifty-six thousand, four hundred forty-six".