80069136 has 120 divisors (see below), whose sum is σ = 245118240. Its totient is φ = 22450176.

The previous prime is 80069123. The next prime is 80069137. The reversal of 80069136 is 63196008.

It is a super-2 number, since 2×80069136² = 12822133079572992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80069097 and 80069106.

It is not an unprimeable number, because it can be changed into a prime (80069137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138480 + ... + 139056.

It is an arithmetic number, because the mean of its divisors is an integer number (2042652).

Almost surely, 2^80069136 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 80069136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122559120).

80069136 is an abundant number, since it is smaller than the sum of its proper divisors (165049104).

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

80069136 is a wasteful number, since it uses less digits than its factorization.

80069136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 80069136 is about 8948.1358952577. The cubic root of 80069136 is about 431.0110264314.

The spelling of 80069136 in words is "eighty million, sixty-nine thousand, one hundred thirty-six".