800800080 has 80 divisors (see below), whose sum is σ = 2519582784. Its totient is φ = 210355200.

The previous prime is 800800073. The next prime is 800800081. The reversal of 800800080 is 80008008.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a self number, because there is not a number n which added to its sum of digits gives 800800080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800800081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8821 + ... + 40980.

Almost surely, 2^800800080 is an apocalyptic number.

800800080 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 800800080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259791392).

800800080 is an abundant number, since it is smaller than the sum of its proper divisors (1718782704).

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

800800080 is a wasteful number, since it uses less digits than its factorization.

800800080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49884 (or 49878 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 800800080 is about 28298.4112628253. The cubic root of 800800080 is about 928.6271338123.

Adding to 800800080 its reverse (80008008), we get a palindrome (880808088).

The spelling of 800800080 in words is "eight hundred million, eight hundred thousand, eighty".