3261661306 has 8 divisors (see below), whose sum is σ = 4924893024. Its totient is φ = 1620030300.

The previous prime is 3261661289. The next prime is 3261661307. The reversal of 3261661306 is 6031661623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3261661307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5399800 + ... + 5400403.

It is an arithmetic number, because the mean of its divisors is an integer number (615611628).

Almost surely, 2^3261661306 is an apocalyptic number.

3261661306 is a deficient number, since it is larger than the sum of its proper divisors (1663231718).

3261661306 is a wasteful number, since it uses less digits than its factorization.

3261661306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10800356.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 3261661306 is about 57110.9560942557. The cubic root of 3261661306 is about 1483.0175386426.

The spelling of 3261661306 in words is "three billion, two hundred sixty-one million, six hundred sixty-one thousand, three hundred six".