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161276074033 is a prime number
BaseRepresentation
bin1001011000110011001…
…1011001100000110001
3120102021121101102111011
42112030303121200301
510120243133332113
6202031133550521
714436400003444
oct2261463314061
9512247342434
10161276074033
11624401594a8
122730b045441
1312292748509
147b3d1a765b
1542dda0363d
hex258ccd9831

161276074033 has 2 divisors, whose sum is σ = 161276074034. Its totient is φ = 161276074032.

The previous prime is 161276073983. The next prime is 161276074073. The reversal of 161276074033 is 330470672161.

It is an a-pointer prime, because the next prime (161276074073) can be obtained adding 161276074033 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124163207424 + 37112866609 = 352368^2 + 192647^2 .

It is a cyclic number.

It is not a de Polignac number, because 161276074033 - 225 = 161242519601 is a prime.

It is not a weakly prime, because it can be changed into another prime (161276074073) 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, 80638037016 + 80638037017.

It is an arithmetic number, because the mean of its divisors is an integer number (80638037017).

Almost surely, 2161276074033 is an apocalyptic number.

It is an amenable number.

161276074033 is a deficient number, since it is larger than the sum of its proper divisors (1).

161276074033 is an equidigital number, since it uses as much as digits as its factorization.

161276074033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 161276074033 in words is "one hundred sixty-one billion, two hundred seventy-six million, seventy-four thousand, thirty-three".