995571643172 has 6 divisors (see below), whose sum is σ = 1742250375558. Its totient is φ = 497785821584.

The previous prime is 995571643147. The next prime is 995571643201. The reversal of 995571643172 is 271346175599.

It can be written as a sum of positive squares in only one way, i.e., 618764731456 + 376806911716 = 786616^2 + 613846^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124446455393 + ... + 124446455400.

It is an arithmetic number, because the mean of its divisors is an integer number (290375062593).

Almost surely, 2^995571643172 is an apocalyptic number.

It is an amenable number.

995571643172 is a deficient number, since it is larger than the sum of its proper divisors (746678732386).

995571643172 is a wasteful number, since it uses less digits than its factorization.

995571643172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248892910797 (or 248892910795 counting only the distinct ones).

The product of its digits is 14288400, while the sum is 59.

The spelling of 995571643172 in words is "nine hundred ninety-five billion, five hundred seventy-one million, six hundred forty-three thousand, one hundred seventy-two".