66315042 has 12 divisors (see below), whose sum is σ = 143682630. Its totient is φ = 22105008.

The previous prime is 66315037. The next prime is 66315043. The reversal of 66315042 is 24051366.

It can be written as a sum of positive squares in only one way, i.e., 46253601 + 20061441 = 6801^2 + 4479^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66314997 and 66315015.

It is not an unprimeable number, because it can be changed into a prime (66315043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1842067 + ... + 1842102.

Almost surely, 2^66315042 is an apocalyptic number.

66315042 is an abundant number, since it is smaller than the sum of its proper divisors (77367588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66315042 is a wasteful number, since it uses less digits than its factorization.

66315042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684177 (or 3684174 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 66315042 is about 8143.4048161687. The cubic root of 66315042 is about 404.7659919315.

The spelling of 66315042 in words is "sixty-six million, three hundred fifteen thousand, forty-two".