101606165 has 4 divisors (see below), whose sum is σ = 121927404. Its totient is φ = 81284928.

The previous prime is 101606149. The next prime is 101606171. The reversal of 101606165 is 561606101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55011889 + 46594276 = 7417^2 + 6826^2 .

It is a cyclic number.

It is not a de Polignac number, because 101606165 - 2⁴ = 101606149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10160612 + ... + 10160621.

It is an arithmetic number, because the mean of its divisors is an integer number (30481851).

Almost surely, 2^101606165 is an apocalyptic number.

It is an amenable number.

101606165 is a deficient number, since it is larger than the sum of its proper divisors (20321239).

101606165 is an equidigital number, since it uses as much as digits as its factorization.

101606165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20321238.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 101606165 is about 10079.9883432472. The cubic root of 101606165 is about 466.6307486528.

The spelling of 101606165 in words is "one hundred one million, six hundred six thousand, one hundred sixty-five".