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161160066 = 23215595743
BaseRepresentation
bin10011001101100…
…01101110000010
3102020020210001100
421212301232002
5312224110231
623554115230
73664560264
oct1146615602
9366223040
10161160066
1182a74a41
1245b7bb16
13275087b2
1417591b34
15e2361e6
hex99b1b82

161160066 has 24 divisors (see below), whose sum is σ = 349464960. Its totient is φ = 53676216.

The previous prime is 161160061. The next prime is 161160067. The reversal of 161160066 is 660061161.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161160061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25191 + ... + 30933.

It is an arithmetic number, because the mean of its divisors is an integer number (14561040).

Almost surely, 2161160066 is an apocalyptic number.

161160066 is an abundant number, since it is smaller than the sum of its proper divisors (188304894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161160066 is a wasteful number, since it uses less digits than its factorization.

161160066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310 (or 7307 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 161160066 is about 12694.8834575194. The cubic root of 161160066 is about 544.1924082400.

The spelling of 161160066 in words is "one hundred sixty-one million, one hundred sixty thousand, sixty-six".

Divisors: 1 2 3 6 9 18 1559 3118 4677 5743 9354 11486 14031 17229 28062 34458 51687 103374 8953337 17906674 26860011 53720022 80580033 161160066