80644616 has 32 divisors (see below), whose sum is σ = 164384640. Its totient is φ = 36867648.

The previous prime is 80644589. The next prime is 80644643. The reversal of 80644616 is 61644608.

It is an interprime number because it is at equal distance from previous prime (80644589) and next prime (80644643).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7505 + ... + 14751.

It is an arithmetic number, because the mean of its divisors is an integer number (5137020).

Almost surely, 2^80644616 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 80644616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82192320).

80644616 is an abundant number, since it is smaller than the sum of its proper divisors (83740024).

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

80644616 is a wasteful number, since it uses less digits than its factorization.

80644616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7373 (or 7369 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 80644616 is about 8980.2347408072. The cubic root of 80644616 is about 432.0411626301.

The spelling of 80644616 in words is "eighty million, six hundred forty-four thousand, six hundred sixteen".