667672448459 has 2 divisors, whose sum is σ = 667672448460. Its totient is φ = 667672448458.

The previous prime is 667672448423. The next prime is 667672448483. The reversal of 667672448459 is 954844276766.

667672448459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667672448459 - 2⁸ = 667672448203 is a prime.

It is a super-2 number, since 2×667672448459² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (667672448159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333836224229 + 333836224230.

It is an arithmetic number, because the mean of its divisors is an integer number (333836224230).

Almost surely, 2^667672448459 is an apocalyptic number.

667672448459 is a deficient number, since it is larger than the sum of its proper divisors (1).

667672448459 is an equidigital number, since it uses as much as digits as its factorization.

667672448459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 487710720, while the sum is 68.

The spelling of 667672448459 in words is "six hundred sixty-seven billion, six hundred seventy-two million, four hundred forty-eight thousand, four hundred fifty-nine".