2136666606 has 8 divisors (see below), whose sum is σ = 4273333224. Its totient is φ = 712222200.

The previous prime is 2136666601. The next prime is 2136666613. The reversal of 2136666606 is 6066666312.

It is a happy number.

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

2136666606 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136666601) 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, 178055545 + ... + 178055556.

It is an arithmetic number, because the mean of its divisors is an integer number (534166653).

Almost surely, 2^2136666606 is an apocalyptic number.

2136666606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2136666606 is a wasteful number, since it uses less digits than its factorization.

2136666606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356111106.

The product of its (nonzero) digits is 279936, while the sum is 42.

The square root of 2136666606 is about 46224.0911863067. The cubic root of 2136666606 is about 1287.9892971186.

The spelling of 2136666606 in words is "two billion, one hundred thirty-six million, six hundred sixty-six thousand, six hundred six".