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106555606165 = 521311121233
BaseRepresentation
bin110001100111100110…
…1011000010010010101
3101012001001011122022001
41203033031120102111
53221211213344130
6120541224235301
710461355464631
oct1431715302225
9335031148261
10106555606165
114120a953038
121879930bb31
13a081a2c648
14522b97bdc1
152b89a216ca
hex18cf358495

106555606165 has 4 divisors (see below), whose sum is σ = 127866727404. Its totient is φ = 85244484928.

The previous prime is 106555606159. The next prime is 106555606177. The reversal of 106555606165 is 561606555601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35086534596 + 71469071569 = 187314^2 + 267337^2 .

It is a cyclic number.

It is not a de Polignac number, because 106555606165 - 225 = 106522051733 is a prime.

It is a super-2 number, since 2×1065556061652 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10655560612 + ... + 10655560621.

It is an arithmetic number, because the mean of its divisors is an integer number (31966681851).

Almost surely, 2106555606165 is an apocalyptic number.

It is an amenable number.

106555606165 is a deficient number, since it is larger than the sum of its proper divisors (21311121239).

106555606165 is an equidigital number, since it uses as much as digits as its factorization.

106555606165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21311121238.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 106555606165 in words is "one hundred six billion, five hundred fifty-five million, six hundred six thousand, one hundred sixty-five".

Divisors: 1 5 21311121233 106555606165