166244617 has 16 divisors (see below), whose sum is σ = 214416000. Its totient is φ = 125072640.

The previous prime is 166244591. The next prime is 166244641. The reversal of 166244617 is 716442661.

It is not a de Polignac number, because 166244617 - 2¹¹ = 166242569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166244647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34992 + ... + 39457.

It is an arithmetic number, because the mean of its divisors is an integer number (13401000).

Almost surely, 2^166244617 is an apocalyptic number.

It is an amenable number.

166244617 is a deficient number, since it is larger than the sum of its proper divisors (48171383).

166244617 is a wasteful number, since it uses less digits than its factorization.

166244617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74496.

The product of its digits is 48384, while the sum is 37.

The square root of 166244617 is about 12893.5882127513. The cubic root of 166244617 is about 549.8562897257.

The spelling of 166244617 in words is "one hundred sixty-six million, two hundred forty-four thousand, six hundred seventeen".