66200863 has 4 divisors (see below), whose sum is σ = 67609440. Its totient is φ = 64792288.

The previous prime is 66200861. The next prime is 66200867. The reversal of 66200863 is 36800266.

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

It is a cyclic number.

It is not a de Polignac number, because 66200863 - 2¹ = 66200861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66200861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704218 + ... + 704311.

It is an arithmetic number, because the mean of its divisors is an integer number (16902360).

Almost surely, 2^66200863 is an apocalyptic number.

66200863 is a deficient number, since it is larger than the sum of its proper divisors (1408577).

66200863 is a wasteful number, since it uses less digits than its factorization.

66200863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408576.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 66200863 is about 8136.3912762354. The cubic root of 66200863 is about 404.5335543404.

The spelling of 66200863 in words is "sixty-six million, two hundred thousand, eight hundred sixty-three".