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12623166467081 = 191353823227489
BaseRepresentation
bin1011011110110000111101…
…0110100110110000001001
31122200202121011201121202222
42313230033112212300021
53123304221103421311
642503000322103425
72441664555412622
oct267541726466011
948622534647688
1012623166467081
114027500426a65
1214ba554aaab75
13707489a52481
14318d708c4a49
1516d5569d1adb
hexb7b0f5a6c09

12623166467081 has 16 divisors (see below), whose sum is σ = 12740721223680. Its totient is φ = 12506234695680.

The previous prime is 12623166467047. The next prime is 12623166467129. The reversal of 12623166467081 is 18076466132621.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12623166467081 is a prime.

It is a super-2 number, since 2×126231664670812 (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 (12623166167081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55375385 + ... + 55602873.

It is an arithmetic number, because the mean of its divisors is an integer number (796295076480).

Almost surely, 212623166467081 is an apocalyptic number.

It is an amenable number.

12623166467081 is a deficient number, since it is larger than the sum of its proper divisors (117554756599).

12623166467081 is a wasteful number, since it uses less digits than its factorization.

12623166467081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228856.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 12623166467081 in words is "twelve trillion, six hundred twenty-three billion, one hundred sixty-six million, four hundred sixty-seven thousand, eighty-one".

Divisors: 1 191 353 823 67423 157193 227489 290519 43450399 55489129 80303617 187223447 15337990847 35759678377 66089876791 12623166467081