660700671 has 8 divisors (see below), whose sum is σ = 881137200. Its totient is φ = 440365632.

The previous prime is 660700669. The next prime is 660700679. The reversal of 660700671 is 176007066.

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

It is not a de Polignac number, because 660700671 - 2¹ = 660700669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660700679) 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, 8596 + ... + 37353.

It is an arithmetic number, because the mean of its divisors is an integer number (110142150).

Almost surely, 2^660700671 is an apocalyptic number.

660700671 is a deficient number, since it is larger than the sum of its proper divisors (220436529).

660700671 is a wasteful number, since it uses less digits than its factorization.

660700671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50745.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 660700671 is about 25704.0983308110. The cubic root of 660700671 is about 870.9667638640.

The spelling of 660700671 in words is "six hundred sixty million, seven hundred thousand, six hundred seventy-one".