667237236028 has 48 divisors (see below), whose sum is σ = 1282896599040. Its totient is φ = 301132440000.

The previous prime is 667237235867. The next prime is 667237236031. The reversal of 667237236028 is 820632732766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5658253 + ... + 5774971.

It is an arithmetic number, because the mean of its divisors is an integer number (26727012480).

Almost surely, 2^667237236028 is an apocalyptic number.

It is an amenable number.

667237236028 is a deficient number, since it is larger than the sum of its proper divisors (615659363012).

667237236028 is a wasteful number, since it uses less digits than its factorization.

667237236028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117658 (or 117656 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 52.

The spelling of 667237236028 in words is "six hundred sixty-seven billion, two hundred thirty-seven million, two hundred thirty-six thousand, twenty-eight".