667210706860 has 48 divisors (see below), whose sum is σ = 1416895847136. Its totient is φ = 263900270592.

The previous prime is 667210706857. The next prime is 667210706873. The reversal of 667210706860 is 68607012766.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122764 + ... + 1161676.

It is an arithmetic number, because the mean of its divisors is an integer number (29518663482).

Almost surely, 2^667210706860 is an apocalyptic number.

It is an amenable number.

667210706860 is an abundant number, since it is smaller than the sum of its proper divisors (749685140276).

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

667210706860 is a wasteful number, since it uses less digits than its factorization.

667210706860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039282 (or 1039280 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 667210706860 in words is "six hundred sixty-seven billion, two hundred ten million, seven hundred six thousand, eight hundred sixty".