655970459773 has 2 divisors, whose sum is σ = 655970459774. Its totient is φ = 655970459772.

The previous prime is 655970459747. The next prime is 655970459791. The reversal of 655970459773 is 377954079556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 594445626009 + 61524833764 = 771003^2 + 248042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655970459773 is a prime.

It is a super-2 number, since 2×655970459773² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 655970459699 and 655970459708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655970459873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327985229886 + 327985229887.

It is an arithmetic number, because the mean of its divisors is an integer number (327985229887).

Almost surely, 2^655970459773 is an apocalyptic number.

It is an amenable number.

655970459773 is a deficient number, since it is larger than the sum of its proper divisors (1).

655970459773 is an equidigital number, since it uses as much as digits as its factorization.

655970459773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250047000, while the sum is 67.

The spelling of 655970459773 in words is "six hundred fifty-five billion, nine hundred seventy million, four hundred fifty-nine thousand, seven hundred seventy-three".