3661122666 has 16 divisors (see below), whose sum is σ = 7324380000. Its totient is φ = 1220018448.

The previous prime is 3661122659. The next prime is 3661122679. The reversal of 3661122666 is 6662211663.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66201 + ... + 108188.

It is an arithmetic number, because the mean of its divisors is an integer number (457773750).

Almost surely, 2^3661122666 is an apocalyptic number.

3661122666 is an abundant number, since it is smaller than the sum of its proper divisors (3663257334).

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

3661122666 is a wasteful number, since it uses less digits than its factorization.

3661122666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177893.

The product of its digits is 93312, while the sum is 39.

The square root of 3661122666 is about 60507.2116858809. The cubic root of 3661122666 is about 1541.2440986850.

The spelling of 3661122666 in words is "three billion, six hundred sixty-one million, one hundred twenty-two thousand, six hundred sixty-six".