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6668130370801 = 10961175507989
BaseRepresentation
bin110000100001000101110…
…0010101100010011110001
3212121110121110201001011011
41201002023202230103301
51333222312333331201
622103144035350521
71255520325650644
oct141021342542361
925543543631134
106668130370801
112140a35835a19
128b83b3452441
13394a56ca5a83
14190a4c649a5b
15b86c0207151
hex6108b8ac4f1

6668130370801 has 4 divisors (see below), whose sum is σ = 6729305878900. Its totient is φ = 6606954862704.

The previous prime is 6668130370789. The next prime is 6668130370807. The reversal of 6668130370801 is 1080730318666.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5382752645776 + 1285377725025 = 2320076^2 + 1133745^2 .

It is a cyclic number.

It is not a de Polignac number, because 6668130370801 - 219 = 6668129846513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6668130370807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30587753886 + ... + 30587754103.

It is an arithmetic number, because the mean of its divisors is an integer number (1682326469725).

Almost surely, 26668130370801 is an apocalyptic number.

It is an amenable number.

6668130370801 is a deficient number, since it is larger than the sum of its proper divisors (61175508099).

6668130370801 is a wasteful number, since it uses less digits than its factorization.

6668130370801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61175508098.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 6668130370801 in words is "six trillion, six hundred sixty-eight billion, one hundred thirty million, three hundred seventy thousand, eight hundred one".

Divisors: 1 109 61175507989 6668130370801