80611011 has 32 divisors (see below), whose sum is σ = 130206720. Its totient is φ = 48991392.

The previous prime is 80611009. The next prime is 80611061. The reversal of 80611011 is 11011608.

It is not a de Polignac number, because 80611011 - 2¹ = 80611009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80611001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27750 + ... + 30516.

It is an arithmetic number, because the mean of its divisors is an integer number (4068960).

Almost surely, 2^80611011 is an apocalyptic number.

80611011 is a deficient number, since it is larger than the sum of its proper divisors (49595709).

80611011 is a wasteful number, since it uses less digits than its factorization.

80611011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872 (or 2866 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 80611011 is about 8978.3634923075. The cubic root of 80611011 is about 431.9811430812.

Adding to 80611011 its reverse (11011608), we get a palindrome (91622619).

The spelling of 80611011 in words is "eighty million, six hundred eleven thousand, eleven".