616512573172 has 12 divisors (see below), whose sum is σ = 1080734991840. Its totient is φ = 307731146936.

The previous prime is 616512573161. The next prime is 616512573227. The reversal of 616512573172 is 271375215616.

616512573172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131282272 + ... + 131286967.

It is an arithmetic number, because the mean of its divisors is an integer number (90061249320).

Almost surely, 2^616512573172 is an apocalyptic number.

It is an amenable number.

616512573172 is a deficient number, since it is larger than the sum of its proper divisors (464222418668).

616512573172 is a wasteful number, since it uses less digits than its factorization.

616512573172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262569830 (or 262569828 counting only the distinct ones).

The product of its digits is 529200, while the sum is 46.

Adding to 616512573172 its reverse (271375215616), we get a palindrome (887887788788).

The spelling of 616512573172 in words is "six hundred sixteen billion, five hundred twelve million, five hundred seventy-three thousand, one hundred seventy-two".