66030145 has 8 divisors (see below), whose sum is σ = 80579520. Its totient is φ = 51928560.

The previous prime is 66030119. The next prime is 66030229. The reversal of 66030145 is 54103066.

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

It is not a de Polignac number, because 66030145 - 2¹⁷ = 65899073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111621 + ... + 112210.

It is an arithmetic number, because the mean of its divisors is an integer number (10072440).

Almost surely, 2^66030145 is an apocalyptic number.

It is an amenable number.

66030145 is a deficient number, since it is larger than the sum of its proper divisors (14549375).

66030145 is a wasteful number, since it uses less digits than its factorization.

66030145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223895.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 66030145 is about 8125.8934893340. The cubic root of 66030145 is about 404.1855195561.

The spelling of 66030145 in words is "sixty-six million, thirty thousand, one hundred forty-five".