207105385180 has 24 divisors (see below), whose sum is σ = 438095922768. Its totient is φ = 82237465728.

The previous prime is 207105385159. The next prime is 207105385213. The reversal of 207105385180 is 81583501702.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37790214 + ... + 37795693.

It is an arithmetic number, because the mean of its divisors is an integer number (18253996782).

Almost surely, 2^207105385180 is an apocalyptic number.

207105385180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207105385180 is an abundant number, since it is smaller than the sum of its proper divisors (230990537588).

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

207105385180 is a wasteful number, since it uses less digits than its factorization.

207105385180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75586053 (or 75586051 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

Adding to 207105385180 its reverse (81583501702), we get a palindrome (288688886882).

The spelling of 207105385180 in words is "two hundred seven billion, one hundred five million, three hundred eighty-five thousand, one hundred eighty".