6446255544516 has 48 divisors (see below), whose sum is σ = 15362139038400. Its totient is φ = 2103387426432.

The previous prime is 6446255544499. The next prime is 6446255544517. The reversal of 6446255544516 is 6154455526446.

It is not an unprimeable number, because it can be changed into a prime (6446255544517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29580171 + ... + 29797298.

It is an arithmetic number, because the mean of its divisors is an integer number (320044563300).

Almost surely, 2^{6446255544516} is an apocalyptic number.

It is an amenable number.

6446255544516 is an abundant number, since it is smaller than the sum of its proper divisors (8915883493884).

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

6446255544516 is a wasteful number, since it uses less digits than its factorization.

6446255544516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59377668 (or 59377666 counting only the distinct ones).

The product of its digits is 69120000, while the sum is 57.

The spelling of 6446255544516 in words is "six trillion, four hundred forty-six billion, two hundred fifty-five million, five hundred forty-four thousand, five hundred sixteen".