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12601287566957 = 172632818449467
BaseRepresentation
bin1011011101011111011101…
…0001001110011001101101
31122121200010101201100002202
42313113313101032121231
53122424414104120312
642444541313231245
72440261440006035
oct267276721163155
948550111640082
1012601287566957
1140191a3353521
1214b6269862525
137053b1020c1b
14317c96c688c5
1516cbc5d249c2
hexb75f744e66d

12601287566957 has 8 divisors (see below), whose sum is σ = 13393271871936. Its totient is φ = 11814940161472.

The previous prime is 12601287566953. The next prime is 12601287566971. The reversal of 12601287566957 is 75966578210621.

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 12601287566957 - 22 = 12601287566953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12601287566893 and 12601287566902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12601287566953) 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, 1409220263 + ... + 1409229204.

It is an arithmetic number, because the mean of its divisors is an integer number (1674158983992).

Almost surely, 212601287566957 is an apocalyptic number.

12601287566957 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12601287566957 is a deficient number, since it is larger than the sum of its proper divisors (791984304979).

12601287566957 is a wasteful number, since it uses less digits than its factorization.

12601287566957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818449747.

The product of its (nonzero) digits is 76204800, while the sum is 65.

The spelling of 12601287566957 in words is "twelve trillion, six hundred one billion, two hundred eighty-seven million, five hundred sixty-six thousand, nine hundred fifty-seven".

Divisors: 1 17 263 4471 2818449467 47913640939 741252209821 12601287566957