66602146560634 has 4 divisors (see below), whose sum is σ = 99903219840954. Its totient is φ = 33301073280316.

The previous prime is 66602146560589. The next prime is 66602146560643. The reversal of 66602146560634 is 43606564120666.

66602146560634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 62627518200025 + 3974628360609 = 7913755^2 + 1993647^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16650536640157 + ... + 16650536640160.

Almost surely, 2^{66602146560634} is an apocalyptic number.

66602146560634 is a deficient number, since it is larger than the sum of its proper divisors (33301073280320).

66602146560634 is a wasteful number, since it uses less digits than its factorization.

66602146560634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33301073280319.

The product of its (nonzero) digits is 22394880, while the sum is 55.

The spelling of 66602146560634 in words is "sixty-six trillion, six hundred two billion, one hundred forty-six million, five hundred sixty thousand, six hundred thirty-four".