207938665116 has 216 divisors, whose sum is σ = 651185939040. Its totient is φ = 54481704192.

The previous prime is 207938665091. The next prime is 207938665117. The reversal of 207938665116 is 611566839702.

207938665116 is a `hidden beast` number, since 20 + 79 + 38 + 6 + 6 + 511 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207938665117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 87038850 + ... + 87041238.

Almost surely, 2^207938665116 is an apocalyptic number.

207938665116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 207938665116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325592969520).

207938665116 is an abundant number, since it is smaller than the sum of its proper divisors (443247273924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

207938665116 is a wasteful number, since it uses less digits than its factorization.

207938665116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745 (or 2577 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 207938665116 in words is "two hundred seven billion, nine hundred thirty-eight million, six hundred sixty-five thousand, one hundred sixteen".