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80846661583 is a prime number
BaseRepresentation
bin100101101001011010…
…1100010011111001111
321201200100020221100101
41023102311202133033
52311033221132313
6101050200311531
75561312166502
oct1132265423717
9251610227311
1080846661583
11313179184a6
12138034725a7
1378156746bc
143cad3ad139
1521829b15dd
hex12d2d627cf

80846661583 has 2 divisors, whose sum is σ = 80846661584. Its totient is φ = 80846661582.

The previous prime is 80846661551. The next prime is 80846661613. The reversal of 80846661583 is 38516664808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80846661583 - 25 = 80846661551 is a prime.

It is a super-2 number, since 2×808466615832 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80846611583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40423330791 + 40423330792.

It is an arithmetic number, because the mean of its divisors is an integer number (40423330792).

Almost surely, 280846661583 is an apocalyptic number.

80846661583 is a deficient number, since it is larger than the sum of its proper divisors (1).

80846661583 is an equidigital number, since it uses as much as digits as its factorization.

80846661583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6635520, while the sum is 55.

The spelling of 80846661583 in words is "eighty billion, eight hundred forty-six million, six hundred sixty-one thousand, five hundred eighty-three".