80249117121 has 20 divisors (see below), whose sum is σ = 119887094272. Its totient is φ = 53495491608.

The previous prime is 80249117071. The next prime is 80249117129. The reversal of 80249117121 is 12171194208.

80249117121 is a `hidden beast` number, since 80 + 2 + 491 + 1 + 71 + 21 = 666.

It is not a de Polignac number, because 80249117121 - 2³⁰ = 79175375297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80249117129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1448880 + ... + 1503246.

Almost surely, 2^80249117121 is an apocalyptic number.

80249117121 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

80249117121 is a deficient number, since it is larger than the sum of its proper divisors (39637977151).

80249117121 is a wasteful number, since it uses less digits than its factorization.

80249117121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72602 (or 72593 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The spelling of 80249117121 in words is "eighty billion, two hundred forty-nine million, one hundred seventeen thousand, one hundred twenty-one".