80805550824999 has 48 divisors (see below), whose sum is σ = 156713795556864. Its totient is φ = 38747916475200.

The previous prime is 80805550824959. The next prime is 80805550825007. The reversal of 80805550824999 is 99942805550808.

80805550824999 is a `hidden beast` number, since 8 + 0 + 8 + 0 + 5 + 5 + 50 + 82 + 499 + 9 = 666.

It is not a de Polignac number, because 80805550824999 - 2⁷ = 80805550824871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80805550824959) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4484703547 + ... + 4484721564.

It is an arithmetic number, because the mean of its divisors is an integer number (3264870740768).

Almost surely, 2^{80805550824999} is an apocalyptic number.

80805550824999 is a deficient number, since it is larger than the sum of its proper divisors (75908244731865).

80805550824999 is a wasteful number, since it uses less digits than its factorization.

80805550824999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969425148 (or 8969425145 counting only the distinct ones).

The product of its (nonzero) digits is 373248000, while the sum is 72.

The spelling of 80805550824999 in words is "eighty trillion, eight hundred five billion, five hundred fifty million, eight hundred twenty-four thousand, nine hundred ninety-nine".