8071051665 has 32 divisors (see below), whose sum is σ = 13744982016. Its totient is φ = 4030115840.

The previous prime is 8071051663. The next prime is 8071051687. The reversal of 8071051665 is 5661501708.

It is not a de Polignac number, because 8071051665 - 2¹ = 8071051663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8071051663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34152 + ... + 131561.

It is an arithmetic number, because the mean of its divisors is an integer number (429530688).

Almost surely, 2^8071051665 is an apocalyptic number.

8071051665 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8071051665 is a deficient number, since it is larger than the sum of its proper divisors (5673930351).

8071051665 is a wasteful number, since it uses less digits than its factorization.

8071051665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165929.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 8071051665 is about 89839.0319682932. The cubic root of 8071051665 is about 2005.9035291097.

The spelling of 8071051665 in words is "eight billion, seventy-one million, fifty-one thousand, six hundred sixty-five".