2660361788 has 24 divisors (see below), whose sum is σ = 5321860992. Its totient is φ = 1139911344.

The previous prime is 2660361761. The next prime is 2660361791. The reversal of 2660361788 is 8871630662.

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 7 ways as a sum of consecutive naturals, for example, 198095 + ... + 211097.

It is an arithmetic number, because the mean of its divisors is an integer number (221744208).

Almost surely, 2^2660361788 is an apocalyptic number.

2660361788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2660361788 is an abundant number, since it is smaller than the sum of its proper divisors (2661499204).

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

2660361788 is a wasteful number, since it uses less digits than its factorization.

2660361788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20321 (or 20319 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 2660361788 is about 51578.6950978793. The cubic root of 2660361788 is about 1385.6287965743.

The spelling of 2660361788 in words is "two billion, six hundred sixty million, three hundred sixty-one thousand, seven hundred eighty-eight".