6720012603 has 24 divisors (see below), whose sum is σ = 10724527008. Its totient is φ = 4033151232.

The previous prime is 6720012571. The next prime is 6720012647. The reversal of 6720012603 is 3062100276.

It is a happy number.

It is not a de Polignac number, because 6720012603 - 2⁵ = 6720012571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6720002603) 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, 951300 + ... + 958337.

It is an arithmetic number, because the mean of its divisors is an integer number (446855292).

Almost surely, 2^6720012603 is an apocalyptic number.

6720012603 is a deficient number, since it is larger than the sum of its proper divisors (4004514405).

6720012603 is a wasteful number, since it uses less digits than its factorization.

6720012603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909683 (or 1909680 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 6720012603 is about 81975.6829980696. The cubic root of 6720012603 is about 1887.0787718302.

Adding to 6720012603 its reverse (3062100276), we get a palindrome (9782112879).

The spelling of 6720012603 in words is "six billion, seven hundred twenty million, twelve thousand, six hundred three".