80663078 has 4 divisors (see below), whose sum is σ = 120994620. Its totient is φ = 40331538.

The previous prime is 80663059. The next prime is 80663081. The reversal of 80663078 is 87036608.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20165768 + ... + 20165771.

It is an arithmetic number, because the mean of its divisors is an integer number (30248655).

Almost surely, 2^80663078 is an apocalyptic number.

80663078 is a deficient number, since it is larger than the sum of its proper divisors (40331542).

80663078 is a wasteful number, since it uses less digits than its factorization.

80663078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40331541.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 80663078 is about 8981.2626061150. The cubic root of 80663078 is about 432.0741292258.

The spelling of 80663078 in words is "eighty million, six hundred sixty-three thousand, seventy-eight".