655968041 has 2 divisors, whose sum is σ = 655968042. Its totient is φ = 655968040.

The previous prime is 655968037. The next prime is 655968097. The reversal of 655968041 is 140869556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 655564816 + 403225 = 25604^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 655968041 - 2² = 655968037 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 655967983 and 655968001.

It is not a weakly prime, because it can be changed into another prime (655968011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327984020 + 327984021.

It is an arithmetic number, because the mean of its divisors is an integer number (327984021).

Almost surely, 2^655968041 is an apocalyptic number.

It is an amenable number.

655968041 is a deficient number, since it is larger than the sum of its proper divisors (1).

655968041 is an equidigital number, since it uses as much as digits as its factorization.

655968041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 655968041 is about 25611.8730474755. The cubic root of 655968041 is about 868.8821866315.

It can be divided in two parts, 65596 and 8041, that added together give a palindrome (73637).

The spelling of 655968041 in words is "six hundred fifty-five million, nine hundred sixty-eight thousand, forty-one".