80240666 has 32 divisors (see below), whose sum is σ = 135660096. Its totient is φ = 35574000.

The previous prime is 80240653. The next prime is 80240701. The reversal of 80240666 is 66604208.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114116 + ... + 114816.

It is an arithmetic number, because the mean of its divisors is an integer number (4239378).

Almost surely, 2^80240666 is an apocalyptic number.

80240666 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

80240666 is a deficient number, since it is larger than the sum of its proper divisors (55419430).

80240666 is a wasteful number, since it uses less digits than its factorization.

80240666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 80240666 is about 8957.7154453577. The cubic root of 80240666 is about 431.3185880966.

The spelling of 80240666 in words is "eighty million, two hundred forty thousand, six hundred sixty-six".