63656213141 has 12 divisors (see below), whose sum is σ = 66174076812. Its totient is φ = 61189315776.

The previous prime is 63656213129. The next prime is 63656213147. The reversal of 63656213141 is 14131265636.

It can be written as a sum of positive squares in 2 ways, for example, as 58537383025 + 5118830116 = 241945^2 + 71546^2 .

It is not a de Polignac number, because 63656213141 - 2¹⁰ = 63656212117 is a prime.

It is a super-2 number, since 2×63656213141² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63656213095 and 63656213104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63656213147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130025 + ... + 379761.

It is an arithmetic number, because the mean of its divisors is an integer number (5514506401).

Almost surely, 2^63656213141 is an apocalyptic number.

It is an amenable number.

63656213141 is a deficient number, since it is larger than the sum of its proper divisors (2517863671).

63656213141 is an equidigital number, since it uses as much as digits as its factorization.

63656213141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249940 (or 249857 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

Adding to 63656213141 its reverse (14131265636), we get a palindrome (77787478777).

The spelling of 63656213141 in words is "sixty-three billion, six hundred fifty-six million, two hundred thirteen thousand, one hundred forty-one".