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166040068 = 2299141887
BaseRepresentation
bin10011110010110…
…01001000000100
3102120102201011011
421321121020010
5320001240233
624250452004
74054213555
oct1171311004
9376381134
10166040068
11857a83a7
1247734004
1328526a7c
14180a232c
15e89c0cd
hex9e59204

166040068 has 12 divisors (see below), whose sum is σ = 290870272. Its totient is φ = 82934280.

The previous prime is 166040009. The next prime is 166040111. The reversal of 166040068 is 860040661.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16980 + ... + 24907.

Almost surely, 2166040068 is an apocalyptic number.

It is an amenable number.

166040068 is a deficient number, since it is larger than the sum of its proper divisors (124830204).

166040068 is a wasteful number, since it uses less digits than its factorization.

166040068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42882 (or 42880 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 166040068 is about 12885.6535728693. The cubic root of 166040068 is about 549.6306809874.

The spelling of 166040068 in words is "one hundred sixty-six million, forty thousand, sixty-eight".

Divisors: 1 2 4 991 1982 3964 41887 83774 167548 41510017 83020034 166040068