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10663457671 = 88371206683
BaseRepresentation
bin10011110111001011…
…10111001110000111
31000112011011202221201
421323211313032013
5133314321121141
64522042523331
7525151615606
oct117345671607
930464152851
1010663457671
114582275639
122097206547
13100c2a3a89
14732307a3d
15426263031
hex27b977387

10663457671 has 4 divisors (see below), whose sum is σ = 10664673192. Its totient is φ = 10662242152.

The previous prime is 10663457657. The next prime is 10663457687. The reversal of 10663457671 is 17675436601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17675436601 = 1329492.

It is a cyclic number.

It is not a de Polignac number, because 10663457671 - 211 = 10663455623 is a prime.

It is a super-2 number, since 2×106634576712 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10663457171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594505 + ... + 612178.

It is an arithmetic number, because the mean of its divisors is an integer number (2666168298).

Almost surely, 210663457671 is an apocalyptic number.

10663457671 is a deficient number, since it is larger than the sum of its proper divisors (1215521).

10663457671 is an equidigital number, since it uses as much as digits as its factorization.

10663457671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215520.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 10663457671 in words is "ten billion, six hundred sixty-three million, four hundred fifty-seven thousand, six hundred seventy-one".

Divisors: 1 8837 1206683 10663457671