11640675257 has 2 divisors, whose sum is σ = 11640675258. Its totient is φ = 11640675256.

The previous prime is 11640675253. The next prime is 11640675271. The reversal of 11640675257 is 75257604611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9134771776 + 2505903481 = 95576^2 + 50059^2 .

It is a cyclic number.

It is not a de Polignac number, because 11640675257 - 2² = 11640675253 is a prime.

It is not a weakly prime, because it can be changed into another prime (11640675253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5820337628 + 5820337629.

It is an arithmetic number, because the mean of its divisors is an integer number (5820337629).

Almost surely, 2^11640675257 is an apocalyptic number.

It is an amenable number.

11640675257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11640675257 is an equidigital number, since it uses as much as digits as its factorization.

11640675257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 11640675257 in words is "eleven billion, six hundred forty million, six hundred seventy-five thousand, two hundred fifty-seven".