80140668 has 24 divisors (see below), whose sum is σ = 192049872. Its totient is φ = 25991424.

The previous prime is 80140639. The next prime is 80140679. The reversal of 80140668 is 86604108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89805 + ... + 90692.

It is an arithmetic number, because the mean of its divisors is an integer number (8002078).

Almost surely, 2^80140668 is an apocalyptic number.

It is an amenable number.

80140668 is an abundant number, since it is smaller than the sum of its proper divisors (111909204).

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

80140668 is a wasteful number, since it uses less digits than its factorization.

80140668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180541 (or 180539 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 80140668 is about 8952.1320365598. The cubic root of 80140668 is about 431.1393401428.

It can be divided in two parts, 80140 and 668, that added together give a palindrome (80808).

The spelling of 80140668 in words is "eighty million, one hundred forty thousand, six hundred sixty-eight".