2666155 has 16 divisors (see below), whose sum is σ = 3354624. Its totient is φ = 2031840.

The previous prime is 2666141. The next prime is 2666177. The reversal of 2666155 is 5516662.

It is not a de Polignac number, because 2666155 - 2¹⁵ = 2633387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15882 + ... + 16048.

It is an arithmetic number, because the mean of its divisors is an integer number (209664).

2^2666155 is an apocalyptic number.

2666155 is a deficient number, since it is larger than the sum of its proper divisors (688469).

2666155 is a wasteful number, since it uses less digits than its factorization.

2666155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306.

The product of its digits is 10800, while the sum is 31.

The square root of 2666155 is about 1632.8364890582. The cubic root of 2666155 is about 138.6633850565.

The spelling of 2666155 in words is "two million, six hundred sixty-six thousand, one hundred fifty-five".