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163442544125101 = 1971511202942129
BaseRepresentation
bin100101001010011001101110…
…110010001010010010101101
3210102200221202220211011201221
4211022121232302022102231
5132410320312244000401
61335340245045103341
746266222415424203
oct4512315662122255
9712627686734657
10163442544125101
114809465924721a
12163b83153b7b51
137027748023687
142c50938a2b073
1513d67b04db7a1
hex94a66ec8a4ad

163442544125101 has 8 divisors (see below), whose sum is σ = 172068842275200. Its totient is φ = 154818651873600.

The previous prime is 163442544125099. The next prime is 163442544125167. The reversal of 163442544125101 is 101521445244361.

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 163442544125101 - 21 = 163442544125099 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 (163442544125501) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 601335196 + ... + 601606933.

It is an arithmetic number, because the mean of its divisors is an integer number (21508605284400).

Almost surely, 2163442544125101 is an apocalyptic number.

It is an amenable number.

163442544125101 is a deficient number, since it is larger than the sum of its proper divisors (8626298150099).

163442544125101 is a wasteful number, since it uses less digits than its factorization.

163442544125101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202949299.

The product of its (nonzero) digits is 460800, while the sum is 43.

Adding to 163442544125101 its reverse (101521445244361), we get a palindrome (264963989369462).

The spelling of 163442544125101 in words is "one hundred sixty-three trillion, four hundred forty-two billion, five hundred forty-four million, one hundred twenty-five thousand, one hundred one".

Divisors: 1 19 7151 135869 1202942129 22855900451 8602239164479 163442544125101