6644506146 has 8 divisors (see below), whose sum is σ = 13289012304. Its totient is φ = 2214835380.

The previous prime is 6644506097. The next prime is 6644506147. The reversal of 6644506146 is 6416054466.

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

6644506146 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 6644506098 and 6644506107.

It is not an unprimeable number, because it can be changed into a prime (6644506147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553708840 + ... + 553708851.

It is an arithmetic number, because the mean of its divisors is an integer number (1661126538).

Almost surely, 2^6644506146 is an apocalyptic number.

6644506146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6644506146 is a wasteful number, since it uses less digits than its factorization.

6644506146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107417696.

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 6644506146 is about 81513.8402113408. The cubic root of 6644506146 is about 1879.9843579882.

The spelling of 6644506146 in words is "six billion, six hundred forty-four million, five hundred six thousand, one hundred forty-six".