6662674944 has 120 divisors (see below), whose sum is σ = 19592459172. Its totient is φ = 2178908160.

The previous prime is 6662674873. The next prime is 6662674951. The reversal of 6662674944 is 4494762666.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6234681600 + 427993344 = 78960^2 + 20688^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230584 + ... + 257864.

Almost surely, 2^6662674944 is an apocalyptic number.

6662674944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6662674944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9796229586).

6662674944 is an abundant number, since it is smaller than the sum of its proper divisors (12929784228).

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

6662674944 is a wasteful number, since it uses less digits than its factorization.

6662674944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27358 (or 27339 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The square root of 6662674944 is about 81625.2102233127. The cubic root of 6662674944 is about 1881.6963472808.

The spelling of 6662674944 in words is "six billion, six hundred sixty-two million, six hundred seventy-four thousand, nine hundred forty-four".