6672618445 has 8 divisors (see below), whose sum is σ = 8007858936. Its totient is φ = 5337616896.

The previous prime is 6672618427. The next prime is 6672618451. The reversal of 6672618445 is 5448162766.

It can be written as a sum of positive squares in 4 ways, for example, as 3380957316 + 3291661129 = 58146^2 + 57373^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6672618445 - 2⁹ = 6672617933 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 8869 + ... + 115861.

It is an arithmetic number, because the mean of its divisors is an integer number (1000982367).

Almost surely, 2^6672618445 is an apocalyptic number.

It is an amenable number.

6672618445 is a deficient number, since it is larger than the sum of its proper divisors (1335240491).

6672618445 is a wasteful number, since it uses less digits than its factorization.

6672618445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119471.

The product of its digits is 1935360, while the sum is 49.

The square root of 6672618445 is about 81686.0970116702. The cubic root of 6672618445 is about 1882.6319749547.

The spelling of 6672618445 in words is "six billion, six hundred seventy-two million, six hundred eighteen thousand, four hundred forty-five".