660536755 has 8 divisors (see below), whose sum is σ = 795570624. Its totient is φ = 526478400.

The previous prime is 660536743. The next prime is 660536759. The reversal of 660536755 is 557635066.

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

It is a de Polignac number, because none of the positive numbers 2^k-660536755 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660536759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242386 + ... + 245095.

It is an arithmetic number, because the mean of its divisors is an integer number (99446328).

Almost surely, 2^660536755 is an apocalyptic number.

660536755 is a deficient number, since it is larger than the sum of its proper divisors (135033869).

660536755 is a wasteful number, since it uses less digits than its factorization.

660536755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487757.

The product of its (nonzero) digits is 567000, while the sum is 43.

The square root of 660536755 is about 25700.9096142530. The cubic root of 660536755 is about 870.8947306411.

The spelling of 660536755 in words is "six hundred sixty million, five hundred thirty-six thousand, seven hundred fifty-five".