80665283385 has 24 divisors (see below), whose sum is σ = 139845780360. Its totient is φ = 43013498112.

The previous prime is 80665283353. The next prime is 80665283399. The reversal of 80665283385 is 58338256608.

80665283385 is a `hidden beast` number, since 8 + 0 + 6 + 6 + 528 + 33 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 48525040656 + 32140242729 = 220284^2 + 179277^2 .

It is not a de Polignac number, because 80665283385 - 2⁵ = 80665283353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82821 + ... + 410109.

It is an arithmetic number, because the mean of its divisors is an integer number (5826907515).

Almost surely, 2^80665283385 is an apocalyptic number.

It is an amenable number.

80665283385 is a deficient number, since it is larger than the sum of its proper divisors (59180496975).

80665283385 is a wasteful number, since it uses less digits than its factorization.

80665283385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332777 (or 332774 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 80665283385 in words is "eighty billion, six hundred sixty-five million, two hundred eighty-three thousand, three hundred eighty-five".