667033339394 has 8 divisors (see below), whose sum is σ = 1002110931468. Its totient is φ = 332996362240.

The previous prime is 667033339391. The next prime is 667033339421. The reversal of 667033339394 is 493933330766.

It can be written as a sum of positive squares in 2 ways, for example, as 503383155025 + 163650184369 = 709495^2 + 404537^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×667033339394² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (667033339391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260152127 + ... + 260154690.

Almost surely, 2^667033339394 is an apocalyptic number.

667033339394 is a deficient number, since it is larger than the sum of its proper divisors (335077592074).

667033339394 is a wasteful number, since it uses less digits than its factorization.

667033339394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520307460.

The product of its (nonzero) digits is 19840464, while the sum is 56.

The spelling of 667033339394 in words is "six hundred sixty-seven billion, thirty-three million, three hundred thirty-nine thousand, three hundred ninety-four".