667217870147 has 2 divisors, whose sum is σ = 667217870148. Its totient is φ = 667217870146.

The previous prime is 667217870129. The next prime is 667217870183. The reversal of 667217870147 is 741078712766.

667217870147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667217870147 - 2⁶ = 667217870083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 667217870092 and 667217870101.

It is not a weakly prime, because it can be changed into another prime (667217870447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333608935073 + 333608935074.

It is an arithmetic number, because the mean of its divisors is an integer number (333608935074).

Almost surely, 2^667217870147 is an apocalyptic number.

667217870147 is a deficient number, since it is larger than the sum of its proper divisors (1).

667217870147 is an equidigital number, since it uses as much as digits as its factorization.

667217870147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5531904, while the sum is 56.

The spelling of 667217870147 in words is "six hundred sixty-seven billion, two hundred seventeen million, eight hundred seventy thousand, one hundred forty-seven".