2661133606 has 8 divisors (see below), whose sum is σ = 3991959504. Its totient is φ = 1330480440.

The previous prime is 2661133571. The next prime is 2661133619. The reversal of 2661133606 is 6063311662.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6996 + ... + 73288.

It is an arithmetic number, because the mean of its divisors is an integer number (498994938).

Almost surely, 2^2661133606 is an apocalyptic number.

2661133606 is a deficient number, since it is larger than the sum of its proper divisors (1330825898).

2661133606 is a wasteful number, since it uses less digits than its factorization.

2661133606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86366.

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

The square root of 2661133606 is about 51586.1765010744. The cubic root of 2661133606 is about 1385.7627820903.

The spelling of 2661133606 in words is "two billion, six hundred sixty-one million, one hundred thirty-three thousand, six hundred six".