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21663411150063 = 326327456794867
BaseRepresentation
bin1001110110011111001111…
…11011010001110011101111
32211201000001101000011120110
410323033213323101303233
510314413131223300223
6114024011135551103
74364062344350364
oct473174773216357
984630041004513
1021663411150063
1169a2445915071
12251a62068b493
13c11b0a594c37
1454c72c46c46b
152787ad3c8d93
hex13b3e7ed1cef

21663411150063 has 8 divisors (see below), whose sum is σ = 28994375380608. Its totient is φ = 14387360509784.

The previous prime is 21663411149957. The next prime is 21663411150067. The reversal of 21663411150063 is 36005111436612.

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 21663411150063 - 29 = 21663411149551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21663411150067) 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, 13728396645 + ... + 13728398222.

It is an arithmetic number, because the mean of its divisors is an integer number (3624296922576).

Almost surely, 221663411150063 is an apocalyptic number.

21663411150063 is a deficient number, since it is larger than the sum of its proper divisors (7330964230545).

21663411150063 is a wasteful number, since it uses less digits than its factorization.

21663411150063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27456795133.

The product of its (nonzero) digits is 77760, while the sum is 39.

Adding to 21663411150063 its reverse (36005111436612), we get a palindrome (57668522586675).

The spelling of 21663411150063 in words is "twenty-one trillion, six hundred sixty-three billion, four hundred eleven million, one hundred fifty thousand, sixty-three".

Divisors: 1 3 263 789 27456794867 82370384601 7221137050021 21663411150063