667714566071 has 8 divisors (see below), whose sum is σ = 778675879200. Its totient is φ = 572326770624.

The previous prime is 667714566053. The next prime is 667714566073. The reversal of 667714566071 is 170665417766.

It is a de Polignac number, because none of the positive numbers 2^k-667714566071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667714565998 and 667714566016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667714566073) 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, 973344506 + ... + 973345191.

It is an arithmetic number, because the mean of its divisors is an integer number (97334484900).

Almost surely, 2^667714566071 is an apocalyptic number.

667714566071 is a deficient number, since it is larger than the sum of its proper divisors (110961313129).

667714566071 is an equidigital number, since it uses as much as digits as its factorization.

667714566071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946689718 (or 1946689704 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 667714566071 in words is "six hundred sixty-seven billion, seven hundred fourteen million, five hundred sixty-six thousand, seventy-one".