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20605120606046 = 2127912143663359
BaseRepresentation
bin1001010111101100000001…
…11001001110111101011110
32200221211102021122022002202
410223312000321032331132
510200043241333343141
6111453510044451502
74224446045221334
oct453660071167536
980854367568082
1020605120606046
116624645453759
1223894b1249b92
13b66092a79842
145134165d9b54
1525aebe53049b
hex12bd80e4ef5e

20605120606046 has 16 divisors (see below), whose sum is σ = 30934440345600. Its totient is φ = 10293641844408.

The previous prime is 20605120606033. The next prime is 20605120606079. The reversal of 20605120606046 is 64060602150602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30730115 + ... + 31393473.

It is an arithmetic number, because the mean of its divisors is an integer number (1933402521600).

Almost surely, 220605120606046 is an apocalyptic number.

20605120606046 is a deficient number, since it is larger than the sum of its proper divisors (10329319739554).

20605120606046 is a wasteful number, since it uses less digits than its factorization.

20605120606046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676783.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 20605120606046 its reverse (64060602150602), we get a palindrome (84665722756648).

The spelling of 20605120606046 in words is "twenty trillion, six hundred five billion, one hundred twenty million, six hundred six thousand, forty-six".

Divisors: 1 2 1279 2558 12143 24286 663359 1326718 15530897 31061794 848436161 1696872322 8055168337 16110336674 10302560303023 20605120606046