2660535155 has 4 divisors (see below), whose sum is σ = 3192642192. Its totient is φ = 2128428120.

The previous prime is 2660535133. The next prime is 2660535169. The reversal of 2660535155 is 5515350662.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2660535155 - 2¹⁴ = 2660518771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266053511 + ... + 266053520.

It is an arithmetic number, because the mean of its divisors is an integer number (798160548).

Almost surely, 2^2660535155 is an apocalyptic number.

2660535155 is a deficient number, since it is larger than the sum of its proper divisors (532107037).

2660535155 is an equidigital number, since it uses as much as digits as its factorization.

2660535155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532107036.

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 2660535155 is about 51580.3756771895. The cubic root of 2660535155 is about 1385.6588948728.

The spelling of 2660535155 in words is "two billion, six hundred sixty million, five hundred thirty-five thousand, one hundred fifty-five".