6663533760 has 168 divisors, whose sum is σ = 24682978320. Its totient is φ = 1640245248.

The previous prime is 6663533753. The next prime is 6663533771. The reversal of 6663533760 is 673353666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51550 + ... + 126429.

It is an arithmetic number, because the mean of its divisors is an integer number (146922490).

Almost surely, 2^6663533760 is an apocalyptic number.

6663533760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6663533760 is an abundant number, since it is smaller than the sum of its proper divisors (18019444560).

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

6663533760 is a wasteful number, since it uses less digits than its factorization.

6663533760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178015 (or 178002 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 45.

The square root of 6663533760 is about 81630.4707814429. The cubic root of 6663533760 is about 1881.7771937633. Note that the first 3 decimals are identical.

The spelling of 6663533760 in words is "six billion, six hundred sixty-three million, five hundred thirty-three thousand, seven hundred sixty".