66803882 has 8 divisors (see below), whose sum is σ = 100715076. Its totient is φ = 33232192.

The previous prime is 66803881. The next prime is 66803917. The reversal of 66803882 is 28830866.

It can be written as a sum of positive squares in 2 ways, for example, as 64818601 + 1985281 = 8051^2 + 1409^2 .

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

It is a super-3 number, since 3×66803882³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (66803881) 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, 84383 + ... + 85170.

Almost surely, 2^66803882 is an apocalyptic number.

66803882 is a deficient number, since it is larger than the sum of its proper divisors (33911194).

66803882 is a wasteful number, since it uses less digits than its factorization.

66803882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169752.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 66803882 is about 8173.3641788434. The cubic root of 66803882 is about 405.7581328543.

The spelling of 66803882 in words is "sixty-six million, eight hundred three thousand, eight hundred eighty-two".