6600001236 has 12 divisors (see below), whose sum is σ = 15400002912. Its totient is φ = 2200000408.

The previous prime is 6600001211. The next prime is 6600001237. The reversal of 6600001236 is 6321000066.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6600001237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275000040 + ... + 275000063.

It is an arithmetic number, because the mean of its divisors is an integer number (1283333576).

Almost surely, 2^6600001236 is an apocalyptic number.

It is an amenable number.

6600001236 is an abundant number, since it is smaller than the sum of its proper divisors (8800001676).

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

6600001236 is a wasteful number, since it uses less digits than its factorization.

6600001236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550000110 (or 550000108 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 6600001236 is about 81240.3916534134. The cubic root of 6600001236 is about 1875.7775724609. Note that the first 3 decimals are identical.

The spelling of 6600001236 in words is "six billion, six hundred million, one thousand, two hundred thirty-six".