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646550096657 is a prime number
BaseRepresentation
bin10010110100010010110…
…00111000101100010001
32021210212012001222102012
421122021120320230101
541043113311043112
61213004312232305
764466054100353
oct11321130705421
92253765058365
10646550096657
1122a222746163
12a538039b695
1348c7aa50cba
14234167370d3
1511c418ee022
hex9689638b11

646550096657 has 2 divisors, whose sum is σ = 646550096658. Its totient is φ = 646550096656.

The previous prime is 646550096639. The next prime is 646550096663. The reversal of 646550096657 is 756690055646.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 607154198401 + 39395898256 = 779201^2 + 198484^2 .

It is a cyclic number.

It is not a de Polignac number, because 646550096657 - 212 = 646550092561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 646550096596 and 646550096605.

It is not a weakly prime, because it can be changed into another prime (646550096957) by changing a digit.

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 as a sum of consecutive naturals, namely, 323275048328 + 323275048329.

It is an arithmetic number, because the mean of its divisors is an integer number (323275048329).

Almost surely, 2646550096657 is an apocalyptic number.

It is an amenable number.

646550096657 is a deficient number, since it is larger than the sum of its proper divisors (1).

646550096657 is an equidigital number, since it uses as much as digits as its factorization.

646550096657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824000, while the sum is 59.

The spelling of 646550096657 in words is "six hundred forty-six billion, five hundred fifty million, ninety-six thousand, six hundred fifty-seven".