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12555550451131 = 177089110418273
BaseRepresentation
bin1011011010110101000100…
…0111111110010110111011
31122110022001220021010012221
42312231101013332112323
53121202231403414011
642411535032144511
72434052146643032
oct266552107762673
948408056233187
1012555550451131
1140008629a8446
1214a9424538137
13700ca24a688c
1431599875d719
1516b8ea831971
hexb6b511fe5bb

12555550451131 has 8 divisors (see below), whose sum is σ = 13294301047344. Its totient is φ = 11816820833280.

The previous prime is 12555550451123. The next prime is 12555550451167. The reversal of 12555550451131 is 13115405555521.

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

It is not a de Polignac number, because 12555550451131 - 23 = 12555550451123 is a prime.

It is a super-2 number, since 2×125555504511312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12555550251131) 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, 4003990 + ... + 6414283.

It is an arithmetic number, because the mean of its divisors is an integer number (1661787630918).

Almost surely, 212555550451131 is an apocalyptic number.

12555550451131 is a deficient number, since it is larger than the sum of its proper divisors (738750596213).

12555550451131 is a wasteful number, since it uses less digits than its factorization.

12555550451131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10489181.

The product of its (nonzero) digits is 375000, while the sum is 43.

The spelling of 12555550451131 in words is "twelve trillion, five hundred fifty-five billion, five hundred fifty million, four hundred fifty-one thousand, one hundred thirty-one".

Divisors: 1 17 70891 1205147 10418273 177110641 738561791243 12555550451131