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16655416939 = 712231945499
BaseRepresentation
bin11111000001011110…
…10111111001101011
31120222202002211211001
433200233113321223
5233102241320224
611352411215431
71126510464610
oct174057277153
946882084731
1016655416939
117077604297
123289a47577
1317557b59c5
14b40022507
1567730d544
hex3e0bd7e6b

16655416939 has 8 divisors (see below), whose sum is σ = 19050336000. Its totient is φ = 14264391336.

The previous prime is 16655416933. The next prime is 16655416957. The reversal of 16655416939 is 93961455661.

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 16655416939 - 211 = 16655414891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16655416939.

It is not an unprimeable number, because it can be changed into a prime (16655416933) 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, 964189 + ... + 981310.

It is an arithmetic number, because the mean of its divisors is an integer number (2381292000).

Almost surely, 216655416939 is an apocalyptic number.

16655416939 is a deficient number, since it is larger than the sum of its proper divisors (2394919061).

16655416939 is a wasteful number, since it uses less digits than its factorization.

16655416939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946729.

The product of its digits is 5248800, while the sum is 55.

The spelling of 16655416939 in words is "sixteen billion, six hundred fifty-five million, four hundred sixteen thousand, nine hundred thirty-nine".

Divisors: 1 7 1223 8561 1945499 13618493 2379345277 16655416939