6446540456446 has 16 divisors (see below), whose sum is σ = 9814314854160. Its totient is φ = 3175103923200.

The previous prime is 6446540456437. The next prime is 6446540456497.

6446540456446 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7484350 + ... + 8301118.

It is an arithmetic number, because the mean of its divisors is an integer number (613394678385).

Almost surely, 2^{6446540456446} is an apocalyptic number.

6446540456446 is a deficient number, since it is larger than the sum of its proper divisors (3367774397714).

6446540456446 is a wasteful number, since it uses less digits than its factorization.

6446540456446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875739.

The product of its (nonzero) digits is 132710400, while the sum is 58.

The spelling of 6446540456446 in words is "six trillion, four hundred forty-six billion, five hundred forty million, four hundred fifty-six thousand, four hundred forty-six".