2665655 has 8 divisors (see below), whose sum is σ = 3207600. Its totient is φ = 2126656.

The previous prime is 2665627. The next prime is 2665667. The reversal of 2665655 is 5565662.

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

It is a cyclic number.

It is not a de Polignac number, because 2665655 - 2¹⁶ = 2600119 is a prime.

It is a congruent number.

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, 2891 + ... + 3699.

It is an arithmetic number, because the mean of its divisors is an integer number (400950).

2^2665655 is an apocalyptic number.

2665655 is a deficient number, since it is larger than the sum of its proper divisors (541945).

2665655 is an equidigital number, since it uses as much as digits as its factorization.

2665655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473.

The product of its digits is 54000, while the sum is 35.

The square root of 2665655 is about 1632.6833740808. The cubic root of 2665655 is about 138.6547163898.

The spelling of 2665655 in words is "two million, six hundred sixty-five thousand, six hundred fifty-five".