6664655452 has 192 divisors, whose sum is σ = 15777780480. Its totient is φ = 2388787200.

The previous prime is 6664655447. The next prime is 6664655461. The reversal of 6664655452 is 2545564666.

Its product of digits (5184000) is a multiple of the sum of its prime factors (432).

It is a junction number, because it is equal to n+sod(n) for n = 6664655396 and 6664655405.

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 63 ways as a sum of consecutive naturals, for example, 27654052 + ... + 27654292.

It is an arithmetic number, because the mean of its divisors is an integer number (82175940).

Almost surely, 2^6664655452 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 6664655452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7888890240).

6664655452 is an abundant number, since it is smaller than the sum of its proper divisors (9113125028).

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

6664655452 is a wasteful number, since it uses less digits than its factorization.

6664655452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 430 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 49.

The square root of 6664655452 is about 81637.3410395023. The cubic root of 6664655452 is about 1881.8827761802.

The spelling of 6664655452 in words is "six billion, six hundred sixty-four million, six hundred fifty-five thousand, four hundred fifty-two".