667068912 has 80 divisors (see below), whose sum is σ = 1976540160. Its totient is φ = 215179200.

The previous prime is 667068901. The next prime is 667068917. The reversal of 667068912 is 219860766.

667068912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667068917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11514 + ... + 38297.

It is an arithmetic number, because the mean of its divisors is an integer number (24706752).

Almost surely, 2^667068912 is an apocalyptic number.

667068912 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

667068912 is an abundant number, since it is smaller than the sum of its proper divisors (1309471248).

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

667068912 is a wasteful number, since it uses less digits than its factorization.

667068912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49859 (or 49847 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 667068912 is about 25827.6772474801. The cubic root of 667068912 is about 873.7561262441.

The spelling of 667068912 in words is "six hundred sixty-seven million, sixty-eight thousand, nine hundred twelve".