8072170641 has 16 divisors (see below), whose sum is σ = 11962651200. Its totient is φ = 5379701184.

The previous prime is 8072170637. The next prime is 8072170669. The reversal of 8072170641 is 1460712708.

8072170641 is a `hidden beast` number, since 8 + 0 + 7 + 2 + 1 + 7 + 0 + 641 = 666.

It is not a de Polignac number, because 8072170641 - 2² = 8072170637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8072170596 and 8072170605.

It is not an unprimeable number, because it can be changed into a prime (8072174641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39145 + ... + 132953.

It is an arithmetic number, because the mean of its divisors is an integer number (747665700).

Almost surely, 2^8072170641 is an apocalyptic number.

It is an amenable number.

8072170641 is a deficient number, since it is larger than the sum of its proper divisors (3890480559).

8072170641 is a wasteful number, since it uses less digits than its factorization.

8072170641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97005 (or 96999 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 8072170641 is about 89845.2594241900. The cubic root of 8072170641 is about 2005.9962247616.

The spelling of 8072170641 in words is "eight billion, seventy-two million, one hundred seventy thousand, six hundred forty-one".