667450115 has 4 divisors (see below), whose sum is σ = 800940144. Its totient is φ = 533960088.

The previous prime is 667450103. The next prime is 667450127. The reversal of 667450115 is 511054766.

667450115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 511054766 = 2 ⋅255527383.

It is an interprime number because it is at equal distance from previous prime (667450103) and next prime (667450127).

It is a cyclic number.

It is not a de Polignac number, because 667450115 - 2⁴ = 667450099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66745007 + ... + 66745016.

It is an arithmetic number, because the mean of its divisors is an integer number (200235036).

Almost surely, 2^667450115 is an apocalyptic number.

667450115 is a deficient number, since it is larger than the sum of its proper divisors (133490029).

667450115 is a wasteful number, since it uses less digits than its factorization.

667450115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133490028.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 667450115 is about 25835.0559318148. The cubic root of 667450115 is about 873.9225333543.

The spelling of 667450115 in words is "six hundred sixty-seven million, four hundred fifty thousand, one hundred fifteen".