66437368606 has 16 divisors (see below), whose sum is σ = 115496755200. Its totient is φ = 28072127160.

The previous prime is 66437368601. The next prime is 66437368633. The reversal of 66437368606 is 60686373466.

It is a super-3 number, since 3×66437368606³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66437368601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33418206 + ... + 33420193.

It is an arithmetic number, because the mean of its divisors is an integer number (7218547200).

Almost surely, 2^66437368606 is an apocalyptic number.

66437368606 is a deficient number, since it is larger than the sum of its proper divisors (49059386594).

66437368606 is a wasteful number, since it uses less digits than its factorization.

66437368606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66838479.

The product of its (nonzero) digits is 15676416, while the sum is 55.

The spelling of 66437368606 in words is "sixty-six billion, four hundred thirty-seven million, three hundred sixty-eight thousand, six hundred six".