80116215481 has 4 divisors (see below), whose sum is σ = 80125434000. Its totient is φ = 80106996964.

The previous prime is 80116215467. The next prime is 80116215493. The reversal of 80116215481 is 18451261108.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80116215481 - 2¹⁹ = 80115691193 is a prime.

It is a super-2 number, since 2×80116215481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80116215481.

It is not an unprimeable number, because it can be changed into a prime (80116255481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4596211 + ... + 4613608.

It is an arithmetic number, because the mean of its divisors is an integer number (20031358500).

Almost surely, 2^80116215481 is an apocalyptic number.

It is an amenable number.

80116215481 is a deficient number, since it is larger than the sum of its proper divisors (9218519).

80116215481 is an equidigital number, since it uses as much as digits as its factorization.

80116215481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9218518.

The product of its (nonzero) digits is 15360, while the sum is 37.

Adding to 80116215481 its reverse (18451261108), we get a palindrome (98567476589).

The spelling of 80116215481 in words is "eighty billion, one hundred sixteen million, two hundred fifteen thousand, four hundred eighty-one".