80556336 has 160 divisors (see below), whose sum is σ = 279982080. Its totient is φ = 21648384.

The previous prime is 80556331. The next prime is 80556347. The reversal of 80556336 is 63365508.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 80556336.

It is not an unprimeable number, because it can be changed into a prime (80556331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50625 + ... + 52191.

It is an arithmetic number, because the mean of its divisors is an integer number (1749888).

Almost surely, 2^80556336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80556336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139991040).

80556336 is an abundant number, since it is smaller than the sum of its proper divisors (199425744).

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

80556336 is a wasteful number, since it uses less digits than its factorization.

80556336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1596 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 80556336 is about 8975.3181559207. The cubic root of 80556336 is about 431.8834562163.

The spelling of 80556336 in words is "eighty million, five hundred fifty-six thousand, three hundred thirty-six".