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166160005109 = 723737143587
BaseRepresentation
bin1001101010111111101…
…0000111011111110101
3120212212222100211102022
42122233322013133311
510210243430130414
6204155521322525
715001412511530
oct2325772073765
9525788324368
10166160005109
1164516a9a17a
1228252796445
1312890528567
148083a93a17
1544c767e18e
hex26afe877f5

166160005109 has 4 divisors (see below), whose sum is σ = 189897148704. Its totient is φ = 142422861516.

The previous prime is 166160005103. The next prime is 166160005111. The reversal of 166160005109 is 901500061661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166160005109 - 24 = 166160005093 is a prime.

It is a super-2 number, since 2×1661600051092 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166160005103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11868571787 + ... + 11868571800.

It is an arithmetic number, because the mean of its divisors is an integer number (47474287176).

Almost surely, 2166160005109 is an apocalyptic number.

It is an amenable number.

166160005109 is a deficient number, since it is larger than the sum of its proper divisors (23737143595).

166160005109 is an equidigital number, since it uses as much as digits as its factorization.

166160005109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23737143594.

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 166160005109 in words is "one hundred sixty-six billion, one hundred sixty million, five thousand, one hundred nine".

Divisors: 1 7 23737143587 166160005109