80266780 has 96 divisors (see below), whose sum is σ = 198858240. Its totient is φ = 26906880.

The previous prime is 80266777. The next prime is 80266783. The reversal of 80266780 is 8766208.

It is an interprime number because it is at equal distance from previous prime (80266777) and next prime (80266783).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80266783) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 146467 + ... + 147013.

It is an arithmetic number, because the mean of its divisors is an integer number (2071440).

Almost surely, 2^80266780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80266780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99429120).

80266780 is an abundant number, since it is smaller than the sum of its proper divisors (118591460).

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

80266780 is a wasteful number, since it uses less digits than its factorization.

80266780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 80266780 is about 8959.1729529014. The cubic root of 80266780 is about 431.3653733180.

The spelling of 80266780 in words is "eighty million, two hundred sixty-six thousand, seven hundred eighty".