656211662141 has 8 divisors (see below), whose sum is σ = 749999631360. Its totient is φ = 562434554448.

The previous prime is 656211662089. The next prime is 656211662207. The reversal of 656211662141 is 141266112656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 656211662141 - 2¹⁴ = 656211645757 is a prime.

It is a super-2 number, since 2×656211662141² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656211662441) 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 7 ways as a sum of consecutive naturals, for example, 2585501 + ... + 2827938.

It is an arithmetic number, because the mean of its divisors is an integer number (93749953920).

Almost surely, 2^656211662141 is an apocalyptic number.

It is an amenable number.

656211662141 is a deficient number, since it is larger than the sum of its proper divisors (93787969219).

656211662141 is a wasteful number, since it uses less digits than its factorization.

656211662141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5430763.

The product of its digits is 103680, while the sum is 41.

Adding to 656211662141 its reverse (141266112656), we get a palindrome (797477774797).

The spelling of 656211662141 in words is "six hundred fifty-six billion, two hundred eleven million, six hundred sixty-two thousand, one hundred forty-one".