66063393 has 24 divisors (see below), whose sum is σ = 105146496. Its totient is φ = 39636000.

The previous prime is 66063391. The next prime is 66063397. The reversal of 66063393 is 39336066.

It is not a de Polignac number, because 66063393 - 2¹ = 66063391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66063391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6696 + ... + 13302.

It is an arithmetic number, because the mean of its divisors is an integer number (4381104).

Almost surely, 2^66063393 is an apocalyptic number.

It is an amenable number.

66063393 is a deficient number, since it is larger than the sum of its proper divisors (39083103).

66063393 is a wasteful number, since it uses less digits than its factorization.

66063393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6725 (or 6722 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 36.

The square root of 66063393 is about 8127.9390376651. The cubic root of 66063393 is about 404.2533476936.

It can be divided in two parts, 6606 and 3393, that added together give a palindrome (9999).

The spelling of 66063393 in words is "sixty-six million, sixty-three thousand, three hundred ninety-three".