80169812 has 24 divisors (see below), whose sum is σ = 146735232. Its totient is φ = 38253600.

The previous prime is 80169811. The next prime is 80169851. The reversal of 80169812 is 21896108.

It is a super-2 number, since 2×80169812² = 12854397512230688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80169811) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 57362 + ... + 58742.

It is an arithmetic number, because the mean of its divisors is an integer number (6113968).

Almost surely, 2^80169812 is an apocalyptic number.

It is an amenable number.

80169812 is a deficient number, since it is larger than the sum of its proper divisors (66565420).

80169812 is a wasteful number, since it uses less digits than its factorization.

80169812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 80169812 is about 8953.7596572613. The cubic root of 80169812 is about 431.1915965997.

The spelling of 80169812 in words is "eighty million, one hundred sixty-nine thousand, eight hundred twelve".