101665166 has 8 divisors (see below), whose sum is σ = 153340824. Its totient is φ = 50551560.

The previous prime is 101665163. The next prime is 101665171. The reversal of 101665166 is 661566101.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101665163) 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 3 ways as a sum of consecutive naturals, for example, 140060 + ... + 140783.

It is an arithmetic number, because the mean of its divisors is an integer number (19167603).

Almost surely, 2^101665166 is an apocalyptic number.

101665166 is a deficient number, since it is larger than the sum of its proper divisors (51675658).

101665166 is a wasteful number, since it uses less digits than its factorization.

101665166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281026.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 101665166 is about 10082.9145587970. The cubic root of 101665166 is about 466.7210527318.

The spelling of 101665166 in words is "one hundred one million, six hundred sixty-five thousand, one hundred sixty-six".