6516443426 has 8 divisors (see below), whose sum is σ = 9813608784. Its totient is φ = 3245240500.

The previous prime is 6516443411. The next prime is 6516443429. The reversal of 6516443426 is 6243446156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6516443429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6489980 + ... + 6490983.

It is an arithmetic number, because the mean of its divisors is an integer number (1226701098).

Almost surely, 2^6516443426 is an apocalyptic number.

6516443426 is a deficient number, since it is larger than the sum of its proper divisors (3297165358).

6516443426 is a wasteful number, since it uses less digits than its factorization.

6516443426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12981216.

The product of its digits is 414720, while the sum is 41.

The square root of 6516443426 is about 80724.4908686329. The cubic root of 6516443426 is about 1867.8279781204.

The spelling of 6516443426 in words is "six billion, five hundred sixteen million, four hundred forty-three thousand, four hundred twenty-six".