185503672216 has 16 divisors (see below), whose sum is σ = 349338250800. Its totient is φ = 92346805344.

The previous prime is 185503672213. The next prime is 185503672217. The reversal of 185503672216 is 612276305581.

It is a super-2 number, since 2×185503672216² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185503672213) 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, 50626900 + ... + 50630563.

It is an arithmetic number, because the mean of its divisors is an integer number (21833640675).

Almost surely, 2^185503672216 is an apocalyptic number.

It is an amenable number.

185503672216 is a deficient number, since it is larger than the sum of its proper divisors (163834578584).

185503672216 is a wasteful number, since it uses less digits than its factorization.

185503672216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101257698 (or 101257694 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

Adding to 185503672216 its reverse (612276305581), we get a palindrome (797779977797).

The spelling of 185503672216 in words is "one hundred eighty-five billion, five hundred three million, six hundred seventy-two thousand, two hundred sixteen".