80117760 has 128 divisors (see below), whose sum is σ = 257945760. Its totient is φ = 21233664.

The previous prime is 80117759. The next prime is 80117761. The reversal of 80117760 is 6771108.

It is an interprime number because it is at equal distance from previous prime (80117759) and next prime (80117761).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (80117761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491439 + ... + 491601.

Almost surely, 2^80117760 is an apocalyptic number.

80117760 is a gapful number since it is divisible by the number (80) 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 80117760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128972880).

80117760 is an abundant number, since it is smaller than the sum of its proper divisors (177828000).

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

80117760 is an equidigital number, since it uses as much as digits as its factorization.

80117760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 80117760 is about 8950.8524733681. The cubic root of 80117760 is about 431.0982562111.

Adding to 80117760 its reverse (6771108), we get a palindrome (86888868).

The spelling of 80117760 in words is "eighty million, one hundred seventeen thousand, seven hundred sixty".