667290087012 has 24 divisors (see below), whose sum is σ = 1568211719200. Its totient is φ = 220829812416.

The previous prime is 667290087011. The next prime is 667290087041. The reversal of 667290087012 is 210780092766.

It is not an unprimeable number, because it can be changed into a prime (667290087011) 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, 200025337 + ... + 200028672.

Almost surely, 2^667290087012 is an apocalyptic number.

It is an amenable number.

667290087012 is an abundant number, since it is smaller than the sum of its proper divisors (900921632188).

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

667290087012 is a wasteful number, since it uses less digits than its factorization.

667290087012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400054155 (or 400054153 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 667290087012 in words is "six hundred sixty-seven billion, two hundred ninety million, eighty-seven thousand, twelve".