80171280 has 120 divisors (see below), whose sum is σ = 307724352. Its totient is φ = 18323712.

The previous prime is 80171257. The next prime is 80171281. The reversal of 80171280 is 8217108.

It is a tau number, because it is divible by the number of its divisors (120).

It is not an unprimeable number, because it can be changed into a prime (80171281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2914 + ... + 12993.

Almost surely, 2^80171280 is an apocalyptic number.

80171280 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 80171280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153862176).

80171280 is an abundant number, since it is smaller than the sum of its proper divisors (227553072).

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

80171280 is a wasteful number, since it uses less digits than its factorization.

80171280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15933 (or 15924 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 80171280 is about 8953.8416336230. The cubic root of 80171280 is about 431.1942284524.

Adding to 80171280 its reverse (8217108), we get a palindrome (88388388).

The spelling of 80171280 in words is "eighty million, one hundred seventy-one thousand, two hundred eighty".