667260259 has 8 divisors (see below), whose sum is σ = 702720000. Its totient is φ = 631834632.

The previous prime is 667260233. The next prime is 667260287. The reversal of 667260259 is 952062766.

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 667260259 - 2⁷ = 667260131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667260299) 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, 38262 + ... + 52900.

It is an arithmetic number, because the mean of its divisors is an integer number (87840000).

Almost surely, 2^667260259 is an apocalyptic number.

667260259 is a deficient number, since it is larger than the sum of its proper divisors (35459741).

667260259 is a wasteful number, since it uses less digits than its factorization.

667260259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17057.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 667260259 is about 25831.3812832376. The cubic root of 667260259 is about 873.8396631556.

The spelling of 667260259 in words is "six hundred sixty-seven million, two hundred sixty thousand, two hundred fifty-nine".