660193001 has 8 divisors (see below), whose sum is σ = 713813184. Its totient is φ = 606978000.

The previous prime is 660192979. The next prime is 660193013. The reversal of 660193001 is 100391066.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660193001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (660198001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97901 + ... + 104426.

It is an arithmetic number, because the mean of its divisors is an integer number (89226648).

Almost surely, 2^660193001 is an apocalyptic number.

It is an amenable number.

660193001 is a deficient number, since it is larger than the sum of its proper divisors (53620183).

660193001 is a wasteful number, since it uses less digits than its factorization.

660193001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202591.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 660193001 is about 25694.2211596304. The cubic root of 660193001 is about 870.7436285296.

The spelling of 660193001 in words is "six hundred sixty million, one hundred ninety-three thousand, one".