660708059 has 8 divisors (see below), whose sum is σ = 724396800. Its totient is φ = 597623400.

The previous prime is 660708049. The next prime is 660708079. The reversal of 660708059 is 950807066.

It is a happy number.

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-660708059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660708049) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 148727 + ... + 153104.

It is an arithmetic number, because the mean of its divisors is an integer number (90549600).

Almost surely, 2^660708059 is an apocalyptic number.

660708059 is a deficient number, since it is larger than the sum of its proper divisors (63688741).

660708059 is a wasteful number, since it uses less digits than its factorization.

660708059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302041.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 660708059 is about 25704.2420429002. The cubic root of 660708059 is about 870.9700102552.

The spelling of 660708059 in words is "six hundred sixty million, seven hundred eight thousand, fifty-nine".