656880041 has 2 divisors, whose sum is σ = 656880042. Its totient is φ = 656880040.

The previous prime is 656879969. The next prime is 656880053. The reversal of 656880041 is 140088656.

656880041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 450670441 + 206209600 = 21229^2 + 14360^2 .

It is a cyclic number.

It is not a de Polignac number, because 656880041 - 2²⁶ = 589771177 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 656879977 and 656880004.

It is not a weakly prime, because it can be changed into another prime (656880241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328440020 + 328440021.

It is an arithmetic number, because the mean of its divisors is an integer number (328440021).

Almost surely, 2^656880041 is an apocalyptic number.

It is an amenable number.

656880041 is a deficient number, since it is larger than the sum of its proper divisors (1).

656880041 is an equidigital number, since it uses as much as digits as its factorization.

656880041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 656880041 is about 25629.6711059662. The cubic root of 656880041 is about 869.2846725002.

The spelling of 656880041 in words is "six hundred fifty-six million, eight hundred eighty thousand, forty-one".