660174671 has 12 divisors (see below), whose sum is σ = 716686560. Its totient is φ = 607838400.

The previous prime is 660174653. The next prime is 660174761. The reversal of 660174671 is 176471066.

It is not a de Polignac number, because 660174671 - 2⁶ = 660174607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660174601) 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 11 ways as a sum of consecutive naturals, for example, 64346 + ... + 73896.

It is an arithmetic number, because the mean of its divisors is an integer number (59723880).

Almost surely, 2^660174671 is an apocalyptic number.

660174671 is a deficient number, since it is larger than the sum of its proper divisors (56511889).

660174671 is a wasteful number, since it uses less digits than its factorization.

660174671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9986 (or 9973 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 660174671 is about 25693.8644621629. The cubic root of 660174671 is about 870.7355698364.

The spelling of 660174671 in words is "six hundred sixty million, one hundred seventy-four thousand, six hundred seventy-one".