2566164 has 12 divisors (see below), whose sum is σ = 5987744. Its totient is φ = 855384.

The previous prime is 2566163. The next prime is 2566171. The reversal of 2566164 is 4616652.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106912 + ... + 106935.

2^2566164 is an apocalyptic number.

It is an amenable number.

2566164 is an abundant number, since it is smaller than the sum of its proper divisors (3421580).

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

2566164 is a wasteful number, since it uses less digits than its factorization.

2566164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213854 (or 213852 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 2566164 is about 1601.9250918816. The cubic root of 2566164 is about 136.9077824357.

The spelling of 2566164 in words is "two million, five hundred sixty-six thousand, one hundred sixty-four".