1660164 has 24 divisors (see below), whose sum is σ = 4226208. Its totient is φ = 503040.

The previous prime is 1660133. The next prime is 1660177. The reversal of 1660164 is 4610661.

It is a super-2 number, since 2×1660164² = 5512289013792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6157 + ... + 6420.

It is an arithmetic number, because the mean of its divisors is an integer number (176092).

2^1660164 is an apocalyptic number.

It is an amenable number.

1660164 is an abundant number, since it is smaller than the sum of its proper divisors (2566044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1660164 is a wasteful number, since it uses less digits than its factorization.

1660164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12595 (or 12593 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1660164 is about 1288.4735154438. The cubic root of 1660164 is about 118.4087139009.

The spelling of 1660164 in words is "one million, six hundred sixty thousand, one hundred sixty-four".