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12162052001161 = 388917971174019
BaseRepresentation
bin1011000011111011001011…
…0010100000110110001001
31121001200101022111201012101
42300332302302200312021
53043230340303014121
641511100342513401
72363451662211256
oct260766262406611
947050338451171
1012162052001161
113969996321897
121445106735861
136a2b51b0ca7a
14300909c4642d
15161569ae3491
hexb0fb2ca0d89

12162052001161 has 8 divisors (see below), whose sum is σ = 12165926141600. Its totient is φ = 12158178252480.

The previous prime is 12162052001111. The next prime is 12162052001173. The reversal of 12162052001161 is 16110025026121.

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 12162052001161 - 29 = 12162052000649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12162052001111) 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, 69802210 + ... + 69976228.

It is an arithmetic number, because the mean of its divisors is an integer number (1520740767700).

Almost surely, 212162052001161 is an apocalyptic number.

It is an amenable number.

12162052001161 is a deficient number, since it is larger than the sum of its proper divisors (3874140439).

12162052001161 is a wasteful number, since it uses less digits than its factorization.

12162052001161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195879.

The product of its (nonzero) digits is 1440, while the sum is 28.

Adding to 12162052001161 its reverse (16110025026121), we get a palindrome (28272077027282).

The spelling of 12162052001161 in words is "twelve trillion, one hundred sixty-two billion, fifty-two million, one thousand, one hundred sixty-one".

Divisors: 1 3889 17971 174019 69889219 676759891 3127295449 12162052001161