6436638366346 has 32 divisors (see below), whose sum is σ = 10183930882560. Its totient is φ = 3042692703936.

The previous prime is 6436638366337. The next prime is 6436638366349.

6436638366346 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (6436638366349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58925196 + ... + 59034328.

It is an arithmetic number, because the mean of its divisors is an integer number (318247840080).

Almost surely, 2^{6436638366346} is an apocalyptic number.

6436638366346 is a deficient number, since it is larger than the sum of its proper divisors (3747292516214).

6436638366346 is a wasteful number, since it uses less digits than its factorization.

6436638366346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112318.

The product of its digits is 483729408, while the sum is 64.

It can be divided in two parts, 64366383 and 66346, that added together give a square (64432729 = 8027²).

The spelling of 6436638366346 in words is "six trillion, four hundred thirty-six billion, six hundred thirty-eight million, three hundred sixty-six thousand, three hundred forty-six".