66351663363 has 8 divisors (see below), whose sum is σ = 90859935568. Its totient is φ = 43038916704.

The previous prime is 66351663359. The next prime is 66351663379. The reversal of 66351663363 is 36336615366.

66351663363 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 66351663363 - 2² = 66351663359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66351663563) 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, 298881256 + ... + 298881477.

It is an arithmetic number, because the mean of its divisors is an integer number (11357491946).

Almost surely, 2^66351663363 is an apocalyptic number.

66351663363 is a deficient number, since it is larger than the sum of its proper divisors (24508272205).

66351663363 is a wasteful number, since it uses less digits than its factorization.

66351663363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597762773.

The product of its digits is 3149280, while the sum is 48.

The spelling of 66351663363 in words is "sixty-six billion, three hundred fifty-one million, six hundred sixty-three thousand, three hundred sixty-three".