80971110005 has 16 divisors (see below), whose sum is σ = 98959268160. Its totient is φ = 63584199168.

The previous prime is 80971109987. The next prime is 80971110061. The reversal of 80971110005 is 50001117908.

It is a cyclic number.

It is not a de Polignac number, because 80971110005 - 2⁶ = 80971109941 is a prime.

It is a super-2 number, since 2×80971110005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5387 + ... + 402456.

It is an arithmetic number, because the mean of its divisors is an integer number (6184954260).

Almost surely, 2^80971110005 is an apocalyptic number.

It is an amenable number.

80971110005 is a deficient number, since it is larger than the sum of its proper divisors (17988158155).

80971110005 is a wasteful number, since it uses less digits than its factorization.

80971110005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408580.

The product of its (nonzero) digits is 2520, while the sum is 32.

The spelling of 80971110005 in words is "eighty billion, nine hundred seventy-one million, one hundred ten thousand, five".