80506033555 has 4 divisors (see below), whose sum is σ = 96607240272. Its totient is φ = 64404826840.

The previous prime is 80506033547. The next prime is 80506033579. The reversal of 80506033555 is 55533060508.

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

It is not a de Polignac number, because 80506033555 - 2³ = 80506033547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8050603351 + ... + 8050603360.

It is an arithmetic number, because the mean of its divisors is an integer number (24151810068).

Almost surely, 2^80506033555 is an apocalyptic number.

80506033555 is a deficient number, since it is larger than the sum of its proper divisors (16101206717).

80506033555 is a wasteful number, since it uses less digits than its factorization.

80506033555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16101206716.

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 80506033555 in words is "eighty billion, five hundred six million, thirty-three thousand, five hundred fifty-five".