80855310081 has 40 divisors (see below), whose sum is σ = 135442018880. Its totient is φ = 42648905376.

The previous prime is 80855310001. The next prime is 80855310083. The reversal of 80855310081 is 18001355808.

It is not a de Polignac number, because 80855310081 - 2¹⁴ = 80855293697 is a prime.

It is a super-2 number, since 2×80855310081² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (80855310083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 338101 + ... + 525378.

It is an arithmetic number, because the mean of its divisors is an integer number (3386050472).

Almost surely, 2^80855310081 is an apocalyptic number.

It is an amenable number.

80855310081 is a deficient number, since it is larger than the sum of its proper divisors (54586708799).

80855310081 is an equidigital number, since it uses as much as digits as its factorization.

80855310081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863523 (or 863502 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 39.

Adding to 80855310081 its reverse (18001355808), we get a palindrome (98856665889).

The spelling of 80855310081 in words is "eighty billion, eight hundred fifty-five million, three hundred ten thousand, eighty-one".