6416581442 has 8 divisors (see below), whose sum is σ = 9625305276. Its totient is φ = 3208146352.

The previous prime is 6416581429. The next prime is 6416581459. The reversal of 6416581442 is 2441856146.

It can be written as a sum of positive squares in 2 ways, for example, as 6060466801 + 356114641 = 77849^2 + 18871^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 6416581442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3593 + ... + 113340.

Almost surely, 2^6416581442 is an apocalyptic number.

6416581442 is a deficient number, since it is larger than the sum of its proper divisors (3208723834).

6416581442 is a wasteful number, since it uses less digits than its factorization.

6416581442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144372.

The product of its digits is 184320, while the sum is 41.

The square root of 6416581442 is about 80103.5669742615. The cubic root of 6416581442 is about 1858.2375722771.

The spelling of 6416581442 in words is "six billion, four hundred sixteen million, five hundred eighty-one thousand, four hundred forty-two".