667108622651 has 8 divisors (see below), whose sum is σ = 671938288560. Its totient is φ = 662279390208.

The previous prime is 667108622581. The next prime is 667108622693. The reversal of 667108622651 is 156226801766.

667108622651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 667108622651 - 2¹⁸ = 667108360507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 667108622651.

It is not an unprimeable number, because it can be changed into a prime (667108621651) 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, 3387155 + ... + 3578691.

It is an arithmetic number, because the mean of its divisors is an integer number (83992286070).

Almost surely, 2^667108622651 is an apocalyptic number.

667108622651 is a deficient number, since it is larger than the sum of its proper divisors (4829665909).

667108622651 is a wasteful number, since it uses less digits than its factorization.

667108622651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216733.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 667108622651 in words is "six hundred sixty-seven billion, one hundred eight million, six hundred twenty-two thousand, six hundred fifty-one".