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161370424663 = 7977197911923
BaseRepresentation
bin1001011001001001101…
…1010100010101010111
3120102112011220221012221
42112102123110111113
510120441312042123
6202044344123211
714441623656250
oct2262233242527
9512464827187
10161370424663
1162489441528
1227336766507
13122a91617a6
147b4b927b27
1542e6e3e25d
hex25926d4557

161370424663 has 16 divisors (see below), whose sum is σ = 184720884480. Its totient is φ = 138094528896.

The previous prime is 161370424651. The next prime is 161370424669. The reversal of 161370424663 is 366424073161.

161370424663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 161370424663 - 225 = 161336870231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161370424669) 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 15 ways as a sum of consecutive naturals, for example, 13528420 + ... + 13540342.

It is an arithmetic number, because the mean of its divisors is an integer number (11545055280).

Almost surely, 2161370424663 is an apocalyptic number.

161370424663 is a deficient number, since it is larger than the sum of its proper divisors (23350459817).

161370424663 is a wasteful number, since it uses less digits than its factorization.

161370424663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14886.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 161370424663 in words is "one hundred sixty-one billion, three hundred seventy million, four hundred twenty-four thousand, six hundred sixty-three".

Divisors: 1 7 977 1979 6839 11923 13853 83461 1933483 11648771 13534381 23595617 81541397 165169319 23052917809 161370424663