2661659130 has 64 divisors (see below), whose sum is σ = 7178492160. Its totient is φ = 626689536.

The previous prime is 2661659129. The next prime is 2661659131. The reversal of 2661659130 is 319561662.

It is an interprime number because it is at equal distance from previous prime (2661659129) and next prime (2661659131).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 139395 + ... + 157334.

It is an arithmetic number, because the mean of its divisors is an integer number (112163940).

Almost surely, 2^2661659130 is an apocalyptic number.

2661659130 is an abundant number, since it is smaller than the sum of its proper divisors (4516833030).

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

2661659130 is a wasteful number, since it uses less digits than its factorization.

2661659130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296775.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 2661659130 is about 51591.2699010210. The cubic root of 2661659130 is about 1385.8539968099.

The spelling of 2661659130 in words is "two billion, six hundred sixty-one million, six hundred fifty-nine thousand, one hundred thirty".