667256010268 has 24 divisors (see below), whose sum is σ = 1206142197120. Its totient is φ = 322657820160.

The previous prime is 667256010247. The next prime is 667256010313. The reversal of 667256010268 is 862010652766.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1539913 + ... + 1925056.

It is an arithmetic number, because the mean of its divisors is an integer number (50255924880).

Almost surely, 2^667256010268 is an apocalyptic number.

It is an amenable number.

667256010268 is a deficient number, since it is larger than the sum of its proper divisors (538886186852).

667256010268 is a wasteful number, since it uses less digits than its factorization.

667256010268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466557 (or 3466555 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 667256010268 in words is "six hundred sixty-seven billion, two hundred fifty-six million, ten thousand, two hundred sixty-eight".