2660566 has 8 divisors (see below), whose sum is σ = 4035960. Its totient is φ = 1315248.

The previous prime is 2660557. The next prime is 2660569. The reversal of 2660566 is 6650662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2660566² = 14157222880712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660569) 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, 7296 + ... + 7651.

It is an arithmetic number, because the mean of its divisors is an integer number (504495).

2^2660566 is an apocalyptic number.

2660566 is a deficient number, since it is larger than the sum of its proper divisors (1375394).

2660566 is a wasteful number, since it uses less digits than its factorization.

2660566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15038.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 2660566 is about 1631.1241522337. The cubic root of 2660566 is about 138.5664249746.

The spelling of 2660566 in words is "two million, six hundred sixty thousand, five hundred sixty-six".