80569136 has 10 divisors (see below), whose sum is σ = 156102732. Its totient is φ = 40284560.

The previous prime is 80569133. The next prime is 80569183. The reversal of 80569136 is 63196508.

It is a self number, because there is not a number n which added to its sum of digits gives 80569136.

It is not an unprimeable number, because it can be changed into a prime (80569133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2517770 + ... + 2517801.

Almost surely, 2^80569136 is an apocalyptic number.

It is an amenable number.

80569136 is a deficient number, since it is larger than the sum of its proper divisors (75533596).

80569136 is a wasteful number, since it uses less digits than its factorization.

80569136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035579 (or 5035573 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 80569136 is about 8976.0311942417. The cubic root of 80569136 is about 431.9063297139.

The spelling of 80569136 in words is "eighty million, five hundred sixty-nine thousand, one hundred thirty-six".