80516544 has 56 divisors (see below), whose sum is σ = 214658448. Its totient is φ = 26634240.

The previous prime is 80516543. The next prime is 80516549. The reversal of 80516544 is 44561508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80516543) 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 7 ways as a sum of consecutive naturals, for example, 24774 + ... + 27834.

Almost surely, 2^80516544 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 80516544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107329224).

80516544 is an abundant number, since it is smaller than the sum of its proper divisors (134141904).

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

80516544 is a wasteful number, since it uses less digits than its factorization.

80516544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213 (or 3203 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 80516544 is about 8973.1011361736. The cubic root of 80516544 is about 431.8123327525.

The spelling of 80516544 in words is "eighty million, five hundred sixteen thousand, five hundred forty-four".