80440102320 has 40 divisors (see below), whose sum is σ = 249364317936. Its totient is φ = 21450693888.

The previous prime is 80440102289. The next prime is 80440102321. The reversal of 80440102320 is 2320104408.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×80440102320² (a number of 23 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (80440102321) 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, 167583307 + ... + 167583786.

Almost surely, 2^80440102320 is an apocalyptic number.

80440102320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80440102320 is an abundant number, since it is smaller than the sum of its proper divisors (168924215616).

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

80440102320 is a wasteful number, since it uses less digits than its factorization.

80440102320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335167109 (or 335167103 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 80440102320 its reverse (2320104408), we get a palindrome (82760206728).

The spelling of 80440102320 in words is "eighty billion, four hundred forty million, one hundred two thousand, three hundred twenty".