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13664122263 = 3211138021437
BaseRepresentation
bin11001011100111000…
…11111010110010111
31022021021110022221100
430232130133112113
5210441003403023
610135513321143
7662416060101
oct145634372627
938237408840
1013664122263
11588204a330
1227941061b3
131399b5b95c
14938a44571
1554e8d8c43
hex32e71f597

13664122263 has 12 divisors (see below), whose sum is σ = 21531344328. Its totient is φ = 8281286160.

The previous prime is 13664122223. The next prime is 13664122271. The reversal of 13664122263 is 36222146631.

13664122263 is a `hidden beast` number, since 1 + 3 + 6 + 641 + 2 + 2 + 2 + 6 + 3 = 666.

It is not a de Polignac number, because 13664122263 - 232 = 9369154967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13664122223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69010620 + ... + 69010817.

It is an arithmetic number, because the mean of its divisors is an integer number (1794278694).

Almost surely, 213664122263 is an apocalyptic number.

13664122263 is a deficient number, since it is larger than the sum of its proper divisors (7867222065).

13664122263 is a wasteful number, since it uses less digits than its factorization.

13664122263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138021454 (or 138021451 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

Adding to 13664122263 its reverse (36222146631), we get a palindrome (49886268894).

The spelling of 13664122263 in words is "thirteen billion, six hundred sixty-four million, one hundred twenty-two thousand, two hundred sixty-three".

Divisors: 1 3 9 11 33 99 138021437 414064311 1242192933 1518235807 4554707421 13664122263