66036019104 has 648 divisors, whose sum is σ = 224720758080. Its totient is φ = 18371358720.

The previous prime is 66036019061. The next prime is 66036019117. The reversal of 66036019104 is 40191063066.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 795614647 + ... + 795614729.

Almost surely, 2^66036019104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66036019104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112360379040).

66036019104 is an abundant number, since it is smaller than the sum of its proper divisors (158684738976).

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

66036019104 is a wasteful number, since it uses less digits than its factorization.

66036019104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 66036019104 in words is "sixty-six billion, thirty-six million, nineteen thousand, one hundred four".