2660155 has 8 divisors (see below), whose sum is σ = 3204432. Its totient is φ = 2119968.

The previous prime is 2660137. The next prime is 2660173. The reversal of 2660155 is 5510662.

It is an interprime number because it is at equal distance from previous prime (2660137) and next prime (2660173).

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 2660155 - 2¹¹ = 2658107 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 6⁷ + 6⁷ + 0 + 1 + 5 + 5⁵ .

It is a Duffinian 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, 669 + ... + 2401.

It is an arithmetic number, because the mean of its divisors is an integer number (400554).

2^2660155 is an apocalyptic number.

2660155 is a deficient number, since it is larger than the sum of its proper divisors (544277).

2660155 is a wasteful number, since it uses less digits than its factorization.

2660155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2660155 is about 1630.9981606366. The cubic root of 2660155 is about 138.5592894336.

The spelling of 2660155 in words is "two million, six hundred sixty thousand, one hundred fifty-five".