80768560 has 40 divisors (see below), whose sum is σ = 191791296. Its totient is φ = 31618560.

The previous prime is 80768551. The next prime is 80768599. The reversal of 80768560 is 6586708.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6981 + ... + 14500.

Almost surely, 2^80768560 is an apocalyptic number.

80768560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80768560 is an abundant number, since it is smaller than the sum of its proper divisors (111022736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80768560 is a wasteful number, since it uses less digits than its factorization.

80768560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21541 (or 21535 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 80768560 is about 8987.1330244967. The cubic root of 80768560 is about 432.2623863254.

The spelling of 80768560 in words is "eighty million, seven hundred sixty-eight thousand, five hundred sixty".