80311616 has 112 divisors (see below), whose sum is σ = 203850240. Its totient is φ = 30481920.

The previous prime is 80311601. The next prime is 80311619. The reversal of 80311616 is 61611308.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80311619) 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 15 ways as a sum of consecutive naturals, for example, 211715 + ... + 212093.

Almost surely, 2^80311616 is an apocalyptic number.

80311616 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80311616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101925120).

80311616 is an abundant number, since it is smaller than the sum of its proper divisors (123538624).

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

80311616 is a wasteful number, since it uses less digits than its factorization.

80311616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 80311616 is about 8961.6748434654. The cubic root of 80311616 is about 431.4456767670.

The spelling of 80311616 in words is "eighty million, three hundred eleven thousand, six hundred sixteen".