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65513541601 = 891315619139
BaseRepresentation
bin111101000000111010…
…010100111111100001
320021002202021201221201
4331000322110333201
52033132431312401
650032502321201
74506325626004
oct750072247741
9207082251851
1065513541601
1125869760512
1210844429201
136240b02741
143256c3353b
151a867e9b01
hexf40e94fe1

65513541601 has 8 divisors (see below), whose sum is σ = 66755383200. Its totient is φ = 64282938720.

The previous prime is 65513541593. The next prime is 65513541607. The reversal of 65513541601 is 10614531556.

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 65513541601 - 23 = 65513541593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65513541607) 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 7 ways as a sum of consecutive naturals, for example, 2797911 + ... + 2821228.

It is an arithmetic number, because the mean of its divisors is an integer number (8344422900).

Almost surely, 265513541601 is an apocalyptic number.

It is an amenable number.

65513541601 is a deficient number, since it is larger than the sum of its proper divisors (1241841599).

65513541601 is a wasteful number, since it uses less digits than its factorization.

65513541601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619359.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 65513541601 in words is "sixty-five billion, five hundred thirteen million, five hundred forty-one thousand, six hundred one".

Divisors: 1 89 131 11659 5619139 500103371 736107209 65513541601