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68275165255 = 5111241366641
BaseRepresentation
bin111111100101100001…
…000101100001000111
320112020012202202102021
4333211201011201013
52104311420242010
651210513424011
74634631220633
oct774541054107
9215205682367
1068275165255
1126a56607210
121129526b007
136590cb418b
143439907dc3
151b98ea38da
hexfe5845847

68275165255 has 8 divisors (see below), whose sum is σ = 89378398224. Its totient is φ = 49654665600.

The previous prime is 68275165243. The next prime is 68275165261. The reversal of 68275165255 is 55256157286.

68275165255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 68275165255 - 25 = 68275165223 is a prime.

It is a super-2 number, since 2×682751652552 (a number of 22 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 7 ways as a sum of consecutive naturals, for example, 620683266 + ... + 620683375.

It is an arithmetic number, because the mean of its divisors is an integer number (11172299778).

Almost surely, 268275165255 is an apocalyptic number.

68275165255 is a deficient number, since it is larger than the sum of its proper divisors (21103232969).

68275165255 is a wasteful number, since it uses less digits than its factorization.

68275165255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241366657.

The product of its digits is 5040000, while the sum is 52.

The spelling of 68275165255 in words is "sixty-eight billion, two hundred seventy-five million, one hundred sixty-five thousand, two hundred fifty-five".

Divisors: 1 5 11 55 1241366641 6206833205 13655033051 68275165255