80440440800320 has 28 divisors (see below), whose sum is σ = 191548799656524. Its totient is φ = 32176176320000.

The previous prime is 80440440800281. The next prime is 80440440800399. The reversal of 80440440800320 is 2300804404408.

It can be written as a sum of positive squares in 2 ways, for example, as 39245814563904 + 41194626236416 = 6264648^2 + 6418304^2 .

It is a super-2 number, since 2×80440440800320² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80440440800320.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125688188431 + ... + 125688189070.

Almost surely, 2^{80440440800320} is an apocalyptic number.

80440440800320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80440440800320 is an abundant number, since it is smaller than the sum of its proper divisors (111108358856204).

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

80440440800320 is a wasteful number, since it uses less digits than its factorization.

80440440800320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251376377518 (or 251376377508 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 37.

The spelling of 80440440800320 in words is "eighty trillion, four hundred forty billion, four hundred forty million, eight hundred thousand, three hundred twenty".