660575071 has 8 divisors (see below), whose sum is σ = 748830320. Its totient is φ = 577668672.

The previous prime is 660575059. The next prime is 660575087. The reversal of 660575071 is 170575066.

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

It is a cyclic number.

It is not a de Polignac number, because 660575071 - 2²⁷ = 526357343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 660575071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660575371) 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, 1336950 + ... + 1337443.

It is an arithmetic number, because the mean of its divisors is an integer number (93603790).

Almost surely, 2^660575071 is an apocalyptic number.

660575071 is a deficient number, since it is larger than the sum of its proper divisors (88255249).

660575071 is a wasteful number, since it uses less digits than its factorization.

660575071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674425.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 660575071 is about 25701.6550245310. The cubic root of 660575071 is about 870.9115697531.

The spelling of 660575071 in words is "six hundred sixty million, five hundred seventy-five thousand, seventy-one".