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12664162904 = 233151065173
BaseRepresentation
bin10111100101101011…
…11100101001011000
31012200120212010120112
423302311330221120
5201414011203104
65452352543452
7625554415511
oct136265745130
935616763515
1012664162904
115409654038
122555251b88
13126a937123
14881d07a08
154e1c1486e
hex2f2d7ca58

12664162904 has 16 divisors (see below), whose sum is σ = 24511283520. Its totient is φ = 6127820640.

The previous prime is 12664162897. The next prime is 12664162909. The reversal of 12664162904 is 40926146621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12664162909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25532339 + ... + 25532834.

It is an arithmetic number, because the mean of its divisors is an integer number (1531955220).

Almost surely, 212664162904 is an apocalyptic number.

It is an amenable number.

12664162904 is a deficient number, since it is larger than the sum of its proper divisors (11847120616).

12664162904 is a wasteful number, since it uses less digits than its factorization.

12664162904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51065210 (or 51065206 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 12664162904 in words is "twelve billion, six hundred sixty-four million, one hundred sixty-two thousand, nine hundred four".

Divisors: 1 2 4 8 31 62 124 248 51065173 102130346 204260692 408521384 1583020363 3166040726 6332081452 12664162904