6665343552 has 280 divisors, whose sum is σ = 22863145536. Its totient is φ = 1880589312.

The previous prime is 6665343551. The next prime is 6665343563. The reversal of 6665343552 is 2553435666.

It is a junction number, because it is equal to n+sod(n) for n = 6665343498 and 6665343507.

It is not an unprimeable number, because it can be changed into a prime (6665343551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3010798 + ... + 3013010.

Almost surely, 2^6665343552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6665343552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11431572768).

6665343552 is an abundant number, since it is smaller than the sum of its proper divisors (16197801984).

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

6665343552 is a wasteful number, since it uses less digits than its factorization.

6665343552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327 (or 2308 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 45.

The square root of 6665343552 is about 81641.5553012068. Note that the first 3 decimals coincide. The cubic root of 6665343552 is about 1881.9475396669.

The spelling of 6665343552 in words is "six billion, six hundred sixty-five million, three hundred forty-three thousand, five hundred fifty-two".