66052011 has 4 divisors (see below), whose sum is σ = 88069352. Its totient is φ = 44034672.

The previous prime is 66052009. The next prime is 66052031. The reversal of 66052011 is 11025066.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 66052011 - 2¹ = 66052009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66052031) 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, 11008666 + ... + 11008671.

It is an arithmetic number, because the mean of its divisors is an integer number (22017338).

Almost surely, 2^66052011 is an apocalyptic number.

66052011 is a deficient number, since it is larger than the sum of its proper divisors (22017341).

66052011 is a wasteful number, since it uses less digits than its factorization.

66052011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22017340.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 66052011 is about 8127.2388300086. The cubic root of 66052011 is about 404.2301302168.

Adding to 66052011 its reverse (11025066), we get a palindrome (77077077).

The spelling of 66052011 in words is "sixty-six million, fifty-two thousand, eleven".