641612072241 has 16 divisors (see below), whose sum is σ = 1086327318400. Its totient is φ = 366635469744.

The previous prime is 641612072239. The next prime is 641612072317. The reversal of 641612072241 is 142270216146.

641612072241 is a `hidden beast` number, since 6 + 416 + 12 + 0 + 7 + 224 + 1 = 666.

It is not a de Polignac number, because 641612072241 - 2¹ = 641612072239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 641612072196 and 641612072205.

It is not an unprimeable number, because it can be changed into a prime (641612072141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1697386246 + ... + 1697386623.

It is an arithmetic number, because the mean of its divisors is an integer number (67895457400).

Almost surely, 2^641612072241 is an apocalyptic number.

It is an amenable number.

641612072241 is a deficient number, since it is larger than the sum of its proper divisors (444715246159).

641612072241 is a wasteful number, since it uses less digits than its factorization.

641612072241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394772885 (or 3394772879 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

Adding to 641612072241 its reverse (142270216146), we get a palindrome (783882288387).

The spelling of 641612072241 in words is "six hundred forty-one billion, six hundred twelve million, seventy-two thousand, two hundred forty-one".