66533830361 has 8 divisors (see below), whose sum is σ = 66584235648. Its totient is φ = 66483450000.

The previous prime is 66533830333. The next prime is 66533830373. The reversal of 66533830361 is 16303833566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66533830361 - 2²² = 66529636057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66533830331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12092111 + ... + 12097611.

It is an arithmetic number, because the mean of its divisors is an integer number (8323029456).

Almost surely, 2^66533830361 is an apocalyptic number.

It is an amenable number.

66533830361 is a deficient number, since it is larger than the sum of its proper divisors (50405287).

66533830361 is a wasteful number, since it uses less digits than its factorization.

66533830361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12463.

The product of its (nonzero) digits is 699840, while the sum is 44.

The spelling of 66533830361 in words is "sixty-six billion, five hundred thirty-three million, eight hundred thirty thousand, three hundred sixty-one".