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161362466255 = 553947364279
BaseRepresentation
bin1001011001000111110…
…0111101010111001111
3120102111121221121100002
42112101330331113033
510120432242410010
6202043501354515
714441466222014
oct2262174752717
9512447847302
10161362466255
11624849a6231
1227333b68a3b
13122a7606283
147b4a85570b
1542e63bb1a5
hex2591f3d5cf

161362466255 has 16 divisors (see below), whose sum is σ = 197312345280. Its totient is φ = 126638972928.

The previous prime is 161362466227. The next prime is 161362466297. The reversal of 161362466255 is 552664263161.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-161362466255 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2478206 + ... + 2542484.

It is an arithmetic number, because the mean of its divisors is an integer number (12332021580).

Almost surely, 2161362466255 is an apocalyptic number.

161362466255 is a deficient number, since it is larger than the sum of its proper divisors (35949879025).

161362466255 is an equidigital number, since it uses as much as digits as its factorization.

161362466255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73810.

The product of its digits is 1555200, while the sum is 47.

The spelling of 161362466255 in words is "one hundred sixty-one billion, three hundred sixty-two million, four hundred sixty-six thousand, two hundred fifty-five".

Divisors: 1 5 53 265 9473 47365 64279 321395 502069 2510345 3406787 17033935 608914967 3044574835 32272493251 161362466255