66301682 has 4 divisors (see below), whose sum is σ = 99452526. Its totient is φ = 33150840.

The previous prime is 66301681. The next prime is 66301687. The reversal of 66301682 is 28610366.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28610366 = 2 ⋅14305183.

It can be written as a sum of positive squares in only one way, i.e., 54184321 + 12117361 = 7361^2 + 3481^2 .

It is not an unprimeable number, because it can be changed into a prime (66301681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16575419 + ... + 16575422.

Almost surely, 2^66301682 is an apocalyptic number.

66301682 is a deficient number, since it is larger than the sum of its proper divisors (33150844).

66301682 is a wasteful number, since it uses less digits than its factorization.

66301682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33150843.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 66301682 is about 8142.5844791442. The cubic root of 66301682 is about 404.7388083711.

The spelling of 66301682 in words is "sixty-six million, three hundred one thousand, six hundred eighty-two".