80930305520 has 40 divisors (see below), whose sum is σ = 191247610560. Its totient is φ = 31841429760.

The previous prime is 80930305493. The next prime is 80930305529. The reversal of 80930305520 is 2550303908.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80930305529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8287160 + ... + 8296919.

It is an arithmetic number, because the mean of its divisors is an integer number (4781190264).

Almost surely, 2^80930305520 is an apocalyptic number.

80930305520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80930305520 is an abundant number, since it is smaller than the sum of its proper divisors (110317305040).

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

80930305520 is a wasteful number, since it uses less digits than its factorization.

80930305520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16584153 (or 16584147 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 80930305520 in words is "eighty billion, nine hundred thirty million, three hundred five thousand, five hundred twenty".