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320056660424653 is a prime number
BaseRepresentation
bin100100011000101101111111…
…1100011010111011111001101
31112222020010011221222220010021
41020301123333203113133031
5313422302020032042103
63052411555555542141
7124262221260255265
oct11061337743273715
91488203157886107
10320056660424653
1192a862a3a4a199
122ba9115bbba951
13109782a12b8239
145906b79bc87a5
15270061cb78bbd
hex12316ff8d77cd

320056660424653 has 2 divisors, whose sum is σ = 320056660424654. Its totient is φ = 320056660424652.

The previous prime is 320056660424651. The next prime is 320056660424681. The reversal of 320056660424653 is 356424066650023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272469593262409 + 47587067162244 = 16506653^2 + 6898338^2 .

It is a cyclic number.

It is not a de Polignac number, because 320056660424653 - 21 = 320056660424651 is a prime.

Together with 320056660424651, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 320056660424653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320056660424651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160028330212326 + 160028330212327.

It is an arithmetic number, because the mean of its divisors is an integer number (160028330212327).

Almost surely, 2320056660424653 is an apocalyptic number.

It is an amenable number.

320056660424653 is a deficient number, since it is larger than the sum of its proper divisors (1).

320056660424653 is an equidigital number, since it uses as much as digits as its factorization.

320056660424653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18662400, while the sum is 52.

The spelling of 320056660424653 in words is "three hundred twenty trillion, fifty-six billion, six hundred sixty million, four hundred twenty-four thousand, six hundred fifty-three".