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55680697161 = 332062248043
BaseRepresentation
bin110011110110110101…
…000000001101001001
312022201111001111011000
4303312311000031021
51403013224302121
641325050325213
74010551055025
oct636665001511
9168644044130
1055680697161
11216833359a1
12a95b429809
13533493c9ab
1429a2d83385
1516ad459526
hexcf6d40349

55680697161 has 8 divisors (see below), whose sum is σ = 82489921760. Its totient is φ = 37120464756.

The previous prime is 55680697157. The next prime is 55680697169. The reversal of 55680697161 is 16179608655.

55680697161 is a `hidden beast` number, since 5 + 568 + 0 + 6 + 9 + 71 + 6 + 1 = 666.

It is not a de Polignac number, because 55680697161 - 22 = 55680697157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55680697098 and 55680697107.

It is not an unprimeable number, because it can be changed into a prime (55680697169) 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 in 7 ways as a sum of consecutive naturals, for example, 1031123995 + ... + 1031124048.

It is an arithmetic number, because the mean of its divisors is an integer number (10311240220).

Almost surely, 255680697161 is an apocalyptic number.

It is an amenable number.

55680697161 is a deficient number, since it is larger than the sum of its proper divisors (26809224599).

55680697161 is a wasteful number, since it uses less digits than its factorization.

55680697161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062248052 (or 2062248046 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 55680697161 in words is "fifty-five billion, six hundred eighty million, six hundred ninety-seven thousand, one hundred sixty-one".

Divisors: 1 3 9 27 2062248043 6186744129 18560232387 55680697161