1660163 has 16 divisors (see below), whose sum is σ = 1900800. Its totient is φ = 1441440.

The previous prime is 1660133. The next prime is 1660177. The reversal of 1660163 is 3610661.

It is a cyclic number.

It is not a de Polignac number, because 1660163 - 2¹⁴ = 1643779 is a prime.

It is a super-2 number, since 2×1660163² = 5512282373138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1660103) 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, 12608 + ... + 12738.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

2^1660163 is an apocalyptic number.

1660163 is a deficient number, since it is larger than the sum of its proper divisors (240637).

1660163 is a wasteful number, since it uses less digits than its factorization.

1660163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1660163 is about 1288.4731273876. The cubic root of 1660163 is about 118.4086901264.

The spelling of 1660163 in words is "one million, six hundred sixty thousand, one hundred sixty-three".