667773404708 has 6 divisors (see below), whose sum is σ = 1168603458246. Its totient is φ = 333886702352.

The previous prime is 667773404659. The next prime is 667773404719. The reversal of 667773404708 is 807404377766.

It can be written as a sum of positive squares in only one way, i.e., 627276672064 + 40496732644 = 792008^2 + 201238^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83471675585 + ... + 83471675592.

It is an arithmetic number, because the mean of its divisors is an integer number (194767243041).

Almost surely, 2^667773404708 is an apocalyptic number.

It is an amenable number.

667773404708 is a deficient number, since it is larger than the sum of its proper divisors (500830053538).

667773404708 is a wasteful number, since it uses less digits than its factorization.

667773404708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166943351181 (or 166943351179 counting only the distinct ones).

The product of its (nonzero) digits is 33191424, while the sum is 59.

The spelling of 667773404708 in words is "six hundred sixty-seven billion, seven hundred seventy-three million, four hundred four thousand, seven hundred eight".