66063176536 has 64 divisors (see below), whose sum is σ = 150106582080. Its totient is φ = 26609049600.

The previous prime is 66063176521. The next prime is 66063176581. The reversal of 66063176536 is 63567136066.

It is a self number, because there is not a number n which added to its sum of digits gives 66063176536.

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 15 ways as a sum of consecutive naturals, for example, 617856 + ... + 716848.

It is an arithmetic number, because the mean of its divisors is an integer number (2345415345).

Almost surely, 2^66063176536 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 66063176536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75053291040).

66063176536 is an abundant number, since it is smaller than the sum of its proper divisors (84043405544).

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

66063176536 is a wasteful number, since it uses less digits than its factorization.

66063176536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99724 (or 99720 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 49.

The spelling of 66063176536 in words is "sixty-six billion, sixty-three million, one hundred seventy-six thousand, five hundred thirty-six".