65671011 has 48 divisors (see below), whose sum is σ = 115664640. Its totient is φ = 35069760.

The previous prime is 65670991. The next prime is 65671013. The reversal of 65671011 is 11017656.

65671011 is a `hidden beast` number, since 656 + 7 + 1 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 65671011 - 2⁶ = 65670947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65671013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99021 + ... + 99681.

It is an arithmetic number, because the mean of its divisors is an integer number (2409680).

Almost surely, 2^65671011 is an apocalyptic number.

65671011 is a deficient number, since it is larger than the sum of its proper divisors (49993629).

65671011 is a wasteful number, since it uses less digits than its factorization.

65671011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 65671011 is about 8103.7652359875. The cubic root of 65671011 is about 403.4514067415.

Adding to 65671011 its reverse (11017656), we get a palindrome (76688667).

The spelling of 65671011 in words is "sixty-five million, six hundred seventy-one thousand, eleven".