80640116 has 12 divisors (see below), whose sum is σ = 147256032. Its totient is φ = 38566968.

The previous prime is 80640113. The next prime is 80640149. The reversal of 80640116 is 61104608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80640113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438170 + ... + 438353.

It is an arithmetic number, because the mean of its divisors is an integer number (12271336).

Almost surely, 2^80640116 is an apocalyptic number.

It is an amenable number.

80640116 is a deficient number, since it is larger than the sum of its proper divisors (66615916).

80640116 is a wasteful number, since it uses less digits than its factorization.

80640116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876550 (or 876548 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 80640116 is about 8979.9841870685. The cubic root of 80640116 is about 432.0331264607.

The spelling of 80640116 in words is "eighty million, six hundred forty thousand, one hundred sixteen".