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561566160001 = 7117293067013
BaseRepresentation
bin10000010101111111111…
…00111001010010000001
31222200111111210200121201
420022333330321102001
533200041414110001
61105551355421201
755400063413240
oct10127774712201
91880444720551
10561566160001
111a7182503770
1290a03454801
1340c561c2c52
141d273abc957
15e91aaed501
hex82bff39481

561566160001 has 8 divisors (see below), whose sum is σ = 700134433344. Its totient is φ = 437584020720.

The previous prime is 561566159953. The next prime is 561566160013. The reversal of 561566160001 is 100061665165.

561566160001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-561566160001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561566160101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3646533430 + ... + 3646533583.

It is an arithmetic number, because the mean of its divisors is an integer number (87516804168).

Almost surely, 2561566160001 is an apocalyptic number.

It is an amenable number.

561566160001 is a deficient number, since it is larger than the sum of its proper divisors (138568273343).

561566160001 is a wasteful number, since it uses less digits than its factorization.

561566160001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7293067031.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 561566160001 in words is "five hundred sixty-one billion, five hundred sixty-six million, one hundred sixty thousand, one".

Divisors: 1 7 11 77 7293067013 51051469091 80223737143 561566160001