667370736667 has 8 divisors (see below), whose sum is σ = 698140641600. Its totient is φ = 637117973184.

The previous prime is 667370736661. The next prime is 667370736749. The reversal of 667370736667 is 766637073766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 667370736667 - 2²⁷ = 667236518939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667370736599 and 667370736608.

It is not an unprimeable number, because it can be changed into a prime (667370736661) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 129282723 + ... + 129287884.

It is an arithmetic number, because the mean of its divisors is an integer number (87267580200).

Almost surely, 2^667370736667 is an apocalyptic number.

667370736667 is a deficient number, since it is larger than the sum of its proper divisors (30769904933).

667370736667 is a wasteful number, since it uses less digits than its factorization.

667370736667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258570725.

The product of its (nonzero) digits is 168031584, while the sum is 64.

The spelling of 667370736667 in words is "six hundred sixty-seven billion, three hundred seventy million, seven hundred thirty-six thousand, six hundred sixty-seven".