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6155550161 = 67169754139
BaseRepresentation
bin1011011101110011…
…00011110111010001
3120212222202100101022
411232321203313101
5100101310101121
62454450445225
7305353212245
oct55671436721
916788670338
106155550161
112679713a42
121239593815
1377138bc97
14425740425
15260611aab
hex16ee63dd1

6155550161 has 8 divisors (see below), whose sum is σ = 6251220960. Its totient is φ = 6059991168.

The previous prime is 6155550139. The next prime is 6155550197. The reversal of 6155550161 is 1610555516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6155550161 - 214 = 6155533777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6155550131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86630 + ... + 140768.

It is an arithmetic number, because the mean of its divisors is an integer number (781402620).

Almost surely, 26155550161 is an apocalyptic number.

It is an amenable number.

6155550161 is a deficient number, since it is larger than the sum of its proper divisors (95670799).

6155550161 is a wasteful number, since it uses less digits than its factorization.

6155550161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55903.

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 6155550161 is about 78457.3142606857. The cubic root of 6155550161 is about 1832.6897809053.

The spelling of 6155550161 in words is "six billion, one hundred fifty-five million, five hundred fifty thousand, one hundred sixty-one".

Divisors: 1 67 1697 54139 113699 3627313 91873883 6155550161