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20662634061001 = 1709102647117787
BaseRepresentation
bin1001011001010111001001…
…11101101001110011001001
32201011022212111100112022001
410230223210331221303021
510202014033304423001
6111540141045431001
74231553222426512
oct454534475516311
981138774315261
1020662634061001
116646a79287709
12239868240b461
13b6b62a3088aa
14516110b41a09
1525c738814001
hex12cae4f69cc9

20662634061001 has 8 divisors (see below), whose sum is σ = 20675101487040. Its totient is φ = 20650167079248.

The previous prime is 20662634060923. The next prime is 20662634061049. The reversal of 20662634061001 is 10016043626602.

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 20662634061001 - 223 = 20662625672393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20662634061061) 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, 175364830 + ... + 175482616.

It is an arithmetic number, because the mean of its divisors is an integer number (2584387685880).

Almost surely, 220662634061001 is an apocalyptic number.

It is an amenable number.

20662634061001 is a deficient number, since it is larger than the sum of its proper divisors (12467426039).

20662634061001 is a wasteful number, since it uses less digits than its factorization.

20662634061001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222143.

The product of its (nonzero) digits is 62208, while the sum is 37.

Adding to 20662634061001 its reverse (10016043626602), we get a palindrome (30678677687603).

The spelling of 20662634061001 in words is "twenty trillion, six hundred sixty-two billion, six hundred thirty-four million, sixty-one thousand, one".

Divisors: 1 1709 102647 117787 175423723 201297983 12090482189 20662634061001