2661334603 has 4 divisors (see below), whose sum is σ = 2661651720. Its totient is φ = 2661017488.

The previous prime is 2661334573. The next prime is 2661334673. The reversal of 2661334603 is 3064331662.

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

It is a cyclic number.

It is not a de Polignac number, because 2661334603 - 2¹³ = 2661326411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2661334673) by changing a digit.

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, 145618 + ... + 162871.

It is an arithmetic number, because the mean of its divisors is an integer number (665412930).

Almost surely, 2^2661334603 is an apocalyptic number.

2661334603 is a deficient number, since it is larger than the sum of its proper divisors (317117).

2661334603 is an equidigital number, since it uses as much as digits as its factorization.

2661334603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317116.

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 2661334603 is about 51588.1246315467. The cubic root of 2661334603 is about 1385.7976703736.

It can be divided in two parts, 26613 and 34603, that added together give a palindrome (61216).

The spelling of 2661334603 in words is "two billion, six hundred sixty-one million, three hundred thirty-four thousand, six hundred three".