80500099999 has 16 divisors (see below), whose sum is σ = 87993480960. Its totient is φ = 73036080000.

The previous prime is 80500099997. The next prime is 80500100003. The reversal of 80500099999 is 99999000508.

It is a cyclic number.

It is not a de Polignac number, because 80500099999 - 2¹ = 80500099997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80500099997) 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, 13755424 + ... + 13761274.

It is an arithmetic number, because the mean of its divisors is an integer number (5499592560).

Almost surely, 2^80500099999 is an apocalyptic number.

80500099999 is a deficient number, since it is larger than the sum of its proper divisors (7493380961).

80500099999 is a wasteful number, since it uses less digits than its factorization.

80500099999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8142.

The product of its (nonzero) digits is 2361960, while the sum is 58.

The spelling of 80500099999 in words is "eighty billion, five hundred million, ninety-nine thousand, nine hundred ninety-nine".