80099521506 has 48 divisors (see below), whose sum is σ = 178163320608. Its totient is φ = 25992734400.

The previous prime is 80099521501. The next prime is 80099521517. The reversal of 80099521506 is 60512599008.

80099521506 is a `hidden beast` number, since 8 + 0 + 0 + 99 + 52 + 1 + 506 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80099521501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228441 + ... + 460851.

It is an arithmetic number, because the mean of its divisors is an integer number (3711735846).

Almost surely, 2^80099521506 is an apocalyptic number.

80099521506 is an abundant number, since it is smaller than the sum of its proper divisors (98063799102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80099521506 is a wasteful number, since it uses less digits than its factorization.

80099521506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232927 (or 232924 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 80099521506 in words is "eighty billion, ninety-nine million, five hundred twenty-one thousand, five hundred six".