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16685186868482 = 21139431380713931
BaseRepresentation
bin1111001011001101001010…
…1000101110010100000010
32012002002101100202011010212
43302303102220232110002
54141332230314242412
655253022524354122
73341315325215606
oct362632250562402
965062340664125
1016685186868482
11535316a007110
121a5584b3a5942
13940538a46472
144197d2b63506
151de047782222
hexf2cd2a2e502

16685186868482 has 32 divisors (see below), whose sum is σ = 27313895983104. Its totient is φ = 7581159003600.

The previous prime is 16685186868481. The next prime is 16685186868509. The reversal of 16685186868482 is 28486868158661.

It is not an unprimeable number, because it can be changed into a prime (16685186868481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197695057 + ... + 1197708987.

It is an arithmetic number, because the mean of its divisors is an integer number (853559249472).

Almost surely, 216685186868482 is an apocalyptic number.

16685186868482 is a deficient number, since it is larger than the sum of its proper divisors (10628709114622).

16685186868482 is a wasteful number, since it uses less digits than its factorization.

16685186868482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31694.

The product of its digits is 1698693120, while the sum is 77.

The spelling of 16685186868482 in words is "sixteen trillion, six hundred eighty-five billion, one hundred eighty-six million, eight hundred sixty-eight thousand, four hundred eighty-two".

Divisors: 1 2 11 22 3943 7886 13807 13931 27614 27862 43373 86746 151877 153241 303754 306482 54441001 54929933 108882002 109859866 192345317 384690634 598851011 604229263 1197702022 1208458526 2115798487 4231596974 758417584931 1516835169862 8342593434241 16685186868482