166160005090 has 8 divisors (see below), whose sum is σ = 299088009180. Its totient is φ = 66464002032.

The previous prime is 166160005057. The next prime is 166160005093. The reversal of 166160005090 is 90500061661.

It can be written as a sum of positive squares in 2 ways, for example, as 161081019801 + 5078985289 = 401349^2 + 71267^2 .

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

It is not an unprimeable number, because it can be changed into a prime (166160005093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8308000245 + ... + 8308000264.

Almost surely, 2^166160005090 is an apocalyptic number.

166160005090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166160005090 is a deficient number, since it is larger than the sum of its proper divisors (132928004090).

166160005090 is a wasteful number, since it uses less digits than its factorization.

166160005090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16616000516.

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 166160005090 in words is "one hundred sixty-six billion, one hundred sixty million, five thousand, ninety".