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6664112256205 = 56121849548381
BaseRepresentation
bin110000011111001110000…
…0010110011010011001101
3212121002020102220200011001
41200332130002303103031
51333141100214144310
622101241221300301
71255315625360065
oct140763402632315
925532212820131
106664112256205
11213a2636a9a58
128b7671864691
133945666b1181
1419078ab3c3a5
15b85375a493a
hex60f9c0b34cd

6664112256205 has 8 divisors (see below), whose sum is σ = 8128031998104. Its totient is φ = 5243891611200.

The previous prime is 6664112256203. The next prime is 6664112256239. The reversal of 6664112256205 is 5026522114666.

It can be written as a sum of positive squares in 4 ways, for example, as 756242422884 + 5907869833321 = 869622^2 + 2430611^2 .

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

It is not a de Polignac number, because 6664112256205 - 21 = 6664112256203 is a prime.

It is a super-2 number, since 2×66641122562052 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664112256203) 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, 10924773886 + ... + 10924774495.

It is an arithmetic number, because the mean of its divisors is an integer number (1016003999763).

Almost surely, 26664112256205 is an apocalyptic number.

It is an amenable number.

6664112256205 is a deficient number, since it is larger than the sum of its proper divisors (1463919741899).

6664112256205 is a wasteful number, since it uses less digits than its factorization.

6664112256205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21849548447.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 6664112256205 in words is "six trillion, six hundred sixty-four billion, one hundred twelve million, two hundred fifty-six thousand, two hundred five".

Divisors: 1 5 61 305 21849548381 109247741905 1332822451241 6664112256205