667210754072 has 64 divisors (see below), whose sum is σ = 1343474657280. Its totient is φ = 309526221312.

The previous prime is 667210754069. The next prime is 667210754087. The reversal of 667210754072 is 270457012766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5162513 + ... + 5290175.

It is an arithmetic number, because the mean of its divisors is an integer number (20991791520).

Almost surely, 2^667210754072 is an apocalyptic number.

It is an amenable number.

667210754072 is an abundant number, since it is smaller than the sum of its proper divisors (676263903208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667210754072 is a wasteful number, since it uses less digits than its factorization.

667210754072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128232 (or 128228 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 667210754072 in words is "six hundred sixty-seven billion, two hundred ten million, seven hundred fifty-four thousand, seventy-two".