207696668907 has 16 divisors (see below), whose sum is σ = 340835559680. Its totient is φ = 109554286752.

The previous prime is 207696668903. The next prime is 207696668939. The reversal of 207696668907 is 709866696702.

It is not a de Polignac number, because 207696668907 - 2² = 207696668903 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is the 455738-th Hogben number.

It is not an unprimeable number, because it can be changed into a prime (207696668903) by changing a digit.

It is a nontrivial repunit in base 455737.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380396557 + ... + 380397102.

It is an arithmetic number, because the mean of its divisors is an integer number (21302222480).

Almost surely, 2^207696668907 is an apocalyptic number.

207696668907 is a deficient number, since it is larger than the sum of its proper divisors (133138890773).

207696668907 is a wasteful number, since it uses less digits than its factorization.

207696668907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760793682.

The product of its (nonzero) digits is 82301184, while the sum is 66.

The spelling of 207696668907 in words is "two hundred seven billion, six hundred ninety-six million, six hundred sixty-eight thousand, nine hundred seven".