66651060003 has 16 divisors (see below), whose sum is σ = 96976002432. Its totient is φ = 40382496000.

The previous prime is 66651060001. The next prime is 66651060019. The reversal of 66651060003 is 30006015666.

It is not a de Polignac number, because 66651060003 - 2¹ = 66651060001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (66651060001) 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, 189553 + ... + 411378.

It is an arithmetic number, because the mean of its divisors is an integer number (6061000152).

Almost surely, 2^66651060003 is an apocalyptic number.

66651060003 is a deficient number, since it is larger than the sum of its proper divisors (30324942429).

66651060003 is a wasteful number, since it uses less digits than its factorization.

66651060003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604306.

The product of its (nonzero) digits is 19440, while the sum is 33.

Adding to 66651060003 its reverse (30006015666), we get a palindrome (96657075669).

The spelling of 66651060003 in words is "sixty-six billion, six hundred fifty-one million, sixty thousand, three".