80158812 has 12 divisors (see below), whose sum is σ = 187037256. Its totient is φ = 26719600.

The previous prime is 80158811. The next prime is 80158877. The reversal of 80158812 is 21885108.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80158811) 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 3 ways as a sum of consecutive naturals, for example, 3339939 + ... + 3339962.

It is an arithmetic number, because the mean of its divisors is an integer number (15586438).

Almost surely, 2^80158812 is an apocalyptic number.

It is an amenable number.

80158812 is an abundant number, since it is smaller than the sum of its proper divisors (106878444).

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

80158812 is a wasteful number, since it uses less digits than its factorization.

80158812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6679908 (or 6679906 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 33.

The square root of 80158812 is about 8953.1453690868. The cubic root of 80158812 is about 431.1718746105.

The spelling of 80158812 in words is "eighty million, one hundred fifty-eight thousand, eight hundred twelve".