66826063 has 8 divisors (see below), whose sum is σ = 72136800. Its totient is φ = 61715808.

The previous prime is 66826051. The next prime is 66826079. The reversal of 66826063 is 36062866.

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

It is not a de Polignac number, because 66826063 - 2²⁵ = 33271631 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 (66826043) 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, 49428 + ... + 50761.

It is an arithmetic number, because the mean of its divisors is an integer number (9017100).

Almost surely, 2^66826063 is an apocalyptic number.

66826063 is a deficient number, since it is larger than the sum of its proper divisors (5310737).

66826063 is a wasteful number, since it uses less digits than its factorization.

66826063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100241.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 66826063 is about 8174.7209738315. The cubic root of 66826063 is about 405.8030360592.

The spelling of 66826063 in words is "sixty-six million, eight hundred twenty-six thousand, sixty-three".