2661659132 has 48 divisors (see below), whose sum is σ = 5317315584. Its totient is φ = 1154736000.

The previous prime is 2661659131. The next prime is 2661659159. The reversal of 2661659132 is 2319561662.

It is a self number, because there is not a number n which added to its sum of digits gives 2661659132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661659131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86207 + ... + 112937.

It is an arithmetic number, because the mean of its divisors is an integer number (110777408).

Almost surely, 2^2661659132 is an apocalyptic number.

2661659132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2661659132 is a deficient number, since it is larger than the sum of its proper divisors (2655656452).

2661659132 is a wasteful number, since it uses less digits than its factorization.

2661659132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26850 (or 26848 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 2661659132 is about 51591.2699204042. The cubic root of 2661659132 is about 1385.8539971570.

The spelling of 2661659132 in words is "two billion, six hundred sixty-one million, six hundred fifty-nine thousand, one hundred thirty-two".