80018120271 has 4 divisors (see below), whose sum is σ = 106690827032. Its totient is φ = 53345413512.

The previous prime is 80018120269. The next prime is 80018120279. The reversal of 80018120271 is 17202181008.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80018120271 - 2¹ = 80018120269 is a prime.

It is a super-2 number, since 2×80018120271² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80018120279) 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, 13336353376 + ... + 13336353381.

It is an arithmetic number, because the mean of its divisors is an integer number (26672706758).

Almost surely, 2^80018120271 is an apocalyptic number.

80018120271 is a deficient number, since it is larger than the sum of its proper divisors (26672706761).

80018120271 is a wasteful number, since it uses less digits than its factorization.

80018120271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26672706760.

The product of its (nonzero) digits is 1792, while the sum is 30.

The spelling of 80018120271 in words is "eighty billion, eighteen million, one hundred twenty thousand, two hundred seventy-one".