667351133 has 8 divisors (see below), whose sum is σ = 710694648. Its totient is φ = 624461824.

The previous prime is 667351109. The next prime is 667351147. The reversal of 667351133 is 331153766.

It can be written as a sum of positive squares in 4 ways, for example, as 432556804 + 234794329 = 20798^2 + 15323^2 .

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 667351133 - 2⁸ = 667350877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667351093 and 667351102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667357133) 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, 110516 + ... + 116397.

It is an arithmetic number, because the mean of its divisors is an integer number (88836831).

Almost surely, 2^667351133 is an apocalyptic number.

It is an amenable number.

667351133 is a deficient number, since it is larger than the sum of its proper divisors (43343515).

667351133 is a wasteful number, since it uses less digits than its factorization.

667351133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227103.

The product of its digits is 34020, while the sum is 35.

The square root of 667351133 is about 25833.1402078803. The cubic root of 667351133 is about 873.8793306866.

The spelling of 667351133 in words is "six hundred sixty-seven million, three hundred fifty-one thousand, one hundred thirty-three".