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16550015055 = 357537340739
BaseRepresentation
bin11110110100111010…
…10011000001001111
31120201101202212121120
433122131103001033
5232343300440210
611334124132023
71124060543520
oct173235230117
946641685546
1016550015055
1170230632a2
12325a697013
131739a00522
14b30026847
1566ce3d270
hex3da75304f

16550015055 has 64 divisors (see below), whose sum is σ = 31257031680. Its totient is φ = 7321107456.

The previous prime is 16550015039. The next prime is 16550015057. The reversal of 16550015055 is 55051005561.

It is not a de Polignac number, because 16550015055 - 24 = 16550015039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16550015057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 385876 + ... + 426614.

It is an arithmetic number, because the mean of its divisors is an integer number (488391120).

Almost surely, 216550015055 is an apocalyptic number.

16550015055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16550015055 is a deficient number, since it is larger than the sum of its proper divisors (14707016625).

16550015055 is a wasteful number, since it uses less digits than its factorization.

16550015055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40880.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 16550015055 in words is "sixteen billion, five hundred fifty million, fifteen thousand, fifty-five".

Divisors: 1 3 5 7 15 21 35 53 73 105 159 219 265 365 371 511 795 1095 1113 1533 1855 2555 3869 5565 7665 11607 19345 27083 40739 58035 81249 122217 135415 203695 285173 406245 611085 855519 1425865 2159167 2973947 4277595 6477501 8921841 10795835 14869735 15114169 20817629 32387505 44609205 45342507 62452887 75570845 104088145 157619191 226712535 312264435 472857573 788095955 1103334337 2364287865 3310003011 5516671685 16550015055