656424442143 has 48 divisors (see below), whose sum is σ = 1055055789216. Its totient is φ = 391422689280.

The previous prime is 656424442117. The next prime is 656424442147. The reversal of 656424442143 is 341244424656.

656424442143 is a `hidden beast` number, since 6 + 5 + 6 + 424 + 4 + 4 + 214 + 3 = 666.

It is not a de Polignac number, because 656424442143 - 2¹⁰ = 656424441119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656424442147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1104898 + ... + 1591743.

It is an arithmetic number, because the mean of its divisors is an integer number (21980328942).

Almost surely, 2^656424442143 is an apocalyptic number.

656424442143 is a deficient number, since it is larger than the sum of its proper divisors (398631347073).

656424442143 is a wasteful number, since it uses less digits than its factorization.

656424442143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696744 (or 2696741 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 45.

Adding to 656424442143 its reverse (341244424656), we get a palindrome (997668866799).

The spelling of 656424442143 in words is "six hundred fifty-six billion, four hundred twenty-four million, four hundred forty-two thousand, one hundred forty-three".