66113247704 has 128 divisors (see below), whose sum is σ = 152235417600. Its totient is φ = 26285575680.

The previous prime is 66113247701. The next prime is 66113247719. The reversal of 66113247704 is 40774231166.

It is a super-2 number, since 2×66113247704² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66113247701) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 44943689 + ... + 44945159.

It is an arithmetic number, because the mean of its divisors is an integer number (1189339200).

Almost surely, 2^66113247704 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 66113247704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76117708800).

66113247704 is an abundant number, since it is smaller than the sum of its proper divisors (86122169896).

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

66113247704 is a wasteful number, since it uses less digits than its factorization.

66113247704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353 (or 2349 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 66113247704 in words is "sixty-six billion, one hundred thirteen million, two hundred forty-seven thousand, seven hundred four".