80651011 has 6 divisors (see below), whose sum is σ = 93818580. Its totient is φ = 69129396.

The previous prime is 80651003. The next prime is 80651027. The reversal of 80651011 is 11015608.

It is not a de Polignac number, because 80651011 - 2³ = 80651003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80651071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 822921 + ... + 823018.

It is an arithmetic number, because the mean of its divisors is an integer number (15636430).

Almost surely, 2^80651011 is an apocalyptic number.

80651011 is a deficient number, since it is larger than the sum of its proper divisors (13167569).

80651011 is a wasteful number, since it uses less digits than its factorization.

80651011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645953 (or 1645946 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 80651011 is about 8980.5907934835. The cubic root of 80651011 is about 432.0525824055.

Adding to 80651011 its reverse (11015608), we get a palindrome (91666619).

The spelling of 80651011 in words is "eighty million, six hundred fifty-one thousand, eleven".