2606555740 has 12 divisors (see below), whose sum is σ = 5473767096. Its totient is φ = 1042622288.

The previous prime is 2606555737. The next prime is 2606555767. The reversal of 2606555740 is 475556062.

It is a junction number, because it is equal to n+sod(n) for n = 2606555693 and 2606555702.

It is a congruent 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, 65163874 + ... + 65163913.

It is an arithmetic number, because the mean of its divisors is an integer number (456147258).

Almost surely, 2^2606555740 is an apocalyptic number.

2606555740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2606555740 is an abundant number, since it is smaller than the sum of its proper divisors (2867211356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2606555740 is a wasteful number, since it uses less digits than its factorization.

2606555740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130327796 (or 130327794 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 2606555740 is about 51054.4389842842. The cubic root of 2606555740 is about 1376.2236142522.

The spelling of 2606555740 in words is "two billion, six hundred six million, five hundred fifty-five thousand, seven hundred forty".