667119812 has 24 divisors (see below), whose sum is σ = 1180324992. Its totient is φ = 329904000.

The previous prime is 667119787. The next prime is 667119821. The reversal of 667119812 is 218911766.

It is a self number, because there is not a number n which added to its sum of digits gives 667119812.

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, 143273 + ... + 147855.

It is an arithmetic number, because the mean of its divisors is an integer number (49180208).

Almost surely, 2^667119812 is an apocalyptic number.

It is an amenable number.

667119812 is a deficient number, since it is larger than the sum of its proper divisors (513205180).

667119812 is a wasteful number, since it uses less digits than its factorization.

667119812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4979 (or 4977 counting only the distinct ones).

The product of its digits is 36288, while the sum is 41.

The square root of 667119812 is about 25828.6626057177. The cubic root of 667119812 is about 873.7783493633.

The spelling of 667119812 in words is "six hundred sixty-seven million, one hundred nineteen thousand, eight hundred twelve".