66030355 has 16 divisors (see below), whose sum is σ = 83856384. Its totient is φ = 49809760.

The previous prime is 66030353. The next prime is 66030359. The reversal of 66030355 is 55303066.

It is not a de Polignac number, because 66030355 - 2¹ = 66030353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66030353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4122 + ... + 12208.

It is an arithmetic number, because the mean of its divisors is an integer number (5241024).

Almost surely, 2^66030355 is an apocalyptic number.

66030355 is a deficient number, since it is larger than the sum of its proper divisors (17826029).

66030355 is a wasteful number, since it uses less digits than its factorization.

66030355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8186.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 66030355 is about 8125.9064109796. The cubic root of 66030355 is about 404.1859480415.

The spelling of 66030355 in words is "sixty-six million, thirty thousand, three hundred fifty-five".