80108515121 has 4 divisors (see below), whose sum is σ = 80110422000. Its totient is φ = 80106608244.

The previous prime is 80108515117. The next prime is 80108515127. The reversal of 80108515121 is 12151580108.

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 80108515121 - 2² = 80108515117 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 (80108515127) 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, 888971 + ... + 974928.

It is an arithmetic number, because the mean of its divisors is an integer number (20027605500).

Almost surely, 2^80108515121 is an apocalyptic number.

It is an amenable number.

80108515121 is a deficient number, since it is larger than the sum of its proper divisors (1906879).

80108515121 is a wasteful number, since it uses less digits than its factorization.

80108515121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906878.

The product of its (nonzero) digits is 3200, while the sum is 32.

The spelling of 80108515121 in words is "eighty billion, one hundred eight million, five hundred fifteen thousand, one hundred twenty-one".