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61006060055 = 574871629653
BaseRepresentation
bin111000110100001111…
…101001101000010111
312211110121122221200202
4320310033221220113
51444420022410210
644005323331115
74256533645253
oct706417515027
9184417587622
1061006060055
112396636a956
12b9a6980a9b
1359a30097b5
142d4a33b263
1518c0c2e9a5
hexe343e9a17

61006060055 has 8 divisors (see below), whose sum is σ = 73217094912. Its totient is φ = 48798299488.

The previous prime is 61006060009. The next prime is 61006060079. The reversal of 61006060055 is 55006060016.

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 61006060055 - 216 = 61005994519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777392 + ... + 852261.

It is an arithmetic number, because the mean of its divisors is an integer number (9152136864).

Almost surely, 261006060055 is an apocalyptic number.

61006060055 is a deficient number, since it is larger than the sum of its proper divisors (12211034857).

61006060055 is a wasteful number, since it uses less digits than its factorization.

61006060055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637145.

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 61006060055 in words is "sixty-one billion, six million, sixty thousand, fifty-five".

Divisors: 1 5 7487 37435 1629653 8148265 12201212011 61006060055