80503915221 has 24 divisors (see below), whose sum is σ = 125253413376. Its totient is φ = 49679831520.

The previous prime is 80503915213. The next prime is 80503915223. The reversal of 80503915221 is 12251930508.

80503915221 is a `hidden beast` number, since 80 + 50 + 3 + 9 + 1 + 522 + 1 = 666.

It is not a de Polignac number, because 80503915221 - 2³ = 80503915213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80503915223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6266290 + ... + 6279123.

It is an arithmetic number, because the mean of its divisors is an integer number (5218892224).

Almost surely, 2^80503915221 is an apocalyptic number.

It is an amenable number.

80503915221 is a deficient number, since it is larger than the sum of its proper divisors (44749498155).

80503915221 is a wasteful number, since it uses less digits than its factorization.

80503915221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12545473 (or 12545470 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 80503915221 in words is "eighty billion, five hundred three million, nine hundred fifteen thousand, two hundred twenty-one".