641412656132 has 12 divisors (see below), whose sum is σ = 1122480078300. Its totient is φ = 320704062336.

The previous prime is 641412656081. The next prime is 641412656149. The reversal of 641412656132 is 231656214146.

It can be written as a sum of positive squares in 2 ways, for example, as 481769257216 + 159643398916 = 694096^2 + 399554^2 .

It is a super-2 number, since 2×641412656132² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641412656132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179744 + ... + 1146792.

It is an arithmetic number, because the mean of its divisors is an integer number (93540006525).

Almost surely, 2^641412656132 is an apocalyptic number.

It is an amenable number.

641412656132 is a deficient number, since it is larger than the sum of its proper divisors (481067422168).

641412656132 is a wasteful number, since it uses less digits than its factorization.

641412656132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132870 (or 1132868 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The spelling of 641412656132 in words is "six hundred forty-one billion, four hundred twelve million, six hundred fifty-six thousand, one hundred thirty-two".