6645253346 has 8 divisors (see below), whose sum is σ = 9969045840. Its totient is φ = 3322238068.

The previous prime is 6645253333. The next prime is 6645253387. The reversal of 6645253346 is 6433525466.

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

It is a junction number, because it is equal to n+sod(n) for n = 6645253297 and 6645253306.

It is an unprimeable number.

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, 172436 + ... + 207423.

It is an arithmetic number, because the mean of its divisors is an integer number (1246130730).

Almost surely, 2^6645253346 is an apocalyptic number.

6645253346 is a deficient number, since it is larger than the sum of its proper divisors (3323792494).

6645253346 is a wasteful number, since it uses less digits than its factorization.

6645253346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388608.

The product of its digits is 1555200, while the sum is 44.

The square root of 6645253346 is about 81518.4233532519. The cubic root of 6645253346 is about 1880.0548258117.

The spelling of 6645253346 in words is "six billion, six hundred forty-five million, two hundred fifty-three thousand, three hundred forty-six".