66210240603 has 32 divisors (see below), whose sum is σ = 98164713472. Its totient is φ = 39419654400.

The previous prime is 66210240583. The next prime is 66210240667. The reversal of 66210240603 is 30604201266.

66210240603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66210240603 - 2⁹ = 66210240091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66210240673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7765983 + ... + 7774503.

It is an arithmetic number, because the mean of its divisors is an integer number (3067647296).

Almost surely, 2^66210240603 is an apocalyptic number.

66210240603 is a deficient number, since it is larger than the sum of its proper divisors (31954472869).

66210240603 is a wasteful number, since it uses less digits than its factorization.

66210240603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14995.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 66210240603 its reverse (30604201266), we get a palindrome (96814441869).

It can be divided in two parts, 662102 and 40603, that added together give a triangular number (702705 = T₁₁₈₅).

The spelling of 66210240603 in words is "sixty-six billion, two hundred ten million, two hundred forty thousand, six hundred three".