66733333333320 has 64 divisors (see below), whose sum is σ = 200736729357120. Its totient is φ = 17747846279424.

The previous prime is 66733333333253. The next prime is 66733333333339. The reversal of 66733333333320 is 2333333333766.

It is a self number, because there is not a number n which added to its sum of digits gives 66733333333320.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745412494 + ... + 745502013.

It is an arithmetic number, because the mean of its divisors is an integer number (3136511396205).

Almost surely, 2^{66733333333320} is an apocalyptic number.

66733333333320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66733333333320 is an abundant number, since it is smaller than the sum of its proper divisors (134003396023800).

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

66733333333320 is a wasteful number, since it uses less digits than its factorization.

66733333333320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490914894 (or 1490914890 counting only the distinct ones).

The product of its (nonzero) digits is 9920232, while the sum is 48.

The spelling of 66733333333320 in words is "sixty-six trillion, seven hundred thirty-three billion, three hundred thirty-three million, three hundred thirty-three thousand, three hundred twenty".