66334334130646 has 4 divisors (see below), whose sum is σ = 99501501195972. Its totient is φ = 33167167065322.

The previous prime is 66334334130641. The next prime is 66334334130667. The reversal of 66334334130646 is 64603143343366.

66334334130646 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 is a junction number, because it is equal to n+sod(n) for n = 66334334130593 and 66334334130602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66334334130641) by changing a digit.

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, 16583583532660 + ... + 16583583532663.

It is an arithmetic number, because the mean of its divisors is an integer number (24875375298993).

Almost surely, 2^{66334334130646} is an apocalyptic number.

66334334130646 is a deficient number, since it is larger than the sum of its proper divisors (33167167065326).

66334334130646 is a wasteful number, since it uses less digits than its factorization.

66334334130646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33167167065325.

The product of its (nonzero) digits is 20155392, while the sum is 52.

The spelling of 66334334130646 in words is "sixty-six trillion, three hundred thirty-four billion, three hundred thirty-four million, one hundred thirty thousand, six hundred forty-six".