66023331 has 16 divisors (see below), whose sum is σ = 96318720. Its totient is φ = 39895520.

The previous prime is 66023329. The next prime is 66023333. The reversal of 66023331 is 13332066.

It is an interprime number because it is at equal distance from previous prime (66023329) and next prime (66023333).

It is a cyclic number.

It is not a de Polignac number, because 66023331 - 2¹ = 66023329 is a prime.

It is a super-2 number, since 2×66023331² = 8718160472671122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66023333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9061 + ... + 14633.

It is an arithmetic number, because the mean of its divisors is an integer number (6019920).

Almost surely, 2^66023331 is an apocalyptic number.

66023331 is a deficient number, since it is larger than the sum of its proper divisors (30295389).

66023331 is a wasteful number, since it uses less digits than its factorization.

66023331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5946.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 66023331 is about 8125.4742015466. The cubic root of 66023331 is about 404.1716157304.

Adding to 66023331 its reverse (13332066), we get a palindrome (79355397).

The spelling of 66023331 in words is "sixty-six million, twenty-three thousand, three hundred thirty-one".